7Baggers

Regency Centers Corporation
(NASDAQ:REG) 

REG stock logo

Regency Centers is the preeminent national owner, operator, and developer of shopping centers located in affluent and densely populated trade areas. Our portfolio includes thriving properties merchandised with highly productive grocers, restaurants, service providers, and best-in-class retailers tha...

Founded: 1963
Full Time Employees: 450
Sector: Real Estate
Industry: REIT-Retail

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At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
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Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 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 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 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 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 
                                                                                          
      revenues:
                                                                                          
      lease income
    402,613,000 393,480,000 377,761,000 369,105,000 371,079,000 361,371,000 349,057,000 347,845,000 353,106,000 349,759,000 320,921,000 304,458,000 308,801,000 305,187,000 295,756,000 292,864,000 293,645,000 286,978,000 283,303,000 276,730,000 234,541,000 222,552,000 274,537,000 278,619,000 272,143,000 266,236,000 277,303,000                                                            
      other property income
    2,907,000 3,132,000 3,089,000 4,499,000 3,021,000 3,187,000 4,444,000 2,670,000 4,350,000 3,114,000 2,638,000 2,683,000 3,138,000 2,429,000 2,466,000 2,720,000 3,104,000 3,028,000 4,401,000 3,074,000 2,261,000 2,435,000 2,305,000 2,245,000 2,780,000 2,194,000 1,982,000                                                            
      management, transaction, and other fees
    6,933,000 7,582,000 6,720,000 7,244,000 6,812,000 7,978,000 6,765,000 6,735,000 6,396,000 6,731,000 7,079,000 7,106,000 6,038,000 6,901,000 5,767,000 6,499,000 6,684,000 6,918,000 19,671,000 7,355,000 6,142,000 6,126,000 6,816,000 7,868,000 7,353,000 7,442,000 6,972,000 7,495,000 6,954,000 6,887,000 7,158,000 6,805,000 6,047,000 6,601,000 6,706,000 6,568,000 5,855,000 6,140,000 6,764,000 7,531,000 5,786,000 6,008,000 6,238,000 5,742,000 5,781,000 6,253,000 6,319,000 5,902,000 5,694,000 6,741,000 6,761,000 6,451,000 6,441,000 6,469,000 7,150,000 6,987,000 6,940,000 12,195,000 7,858,000 22,876,000 6,524,000 9,518,000 6,931,000                        
      total revenues
    412,453,000 404,194,000 387,570,000 380,848,000 380,912,000 372,536,000 360,266,000 357,250,000 363,852,000 359,604,000 330,638,000 314,247,000 317,977,000 314,517,000 303,989,000 302,083,000 303,433,000 296,924,000 307,375,000 287,159,000 242,944,000 231,113,000 283,658,000 288,732,000 282,276,000 275,872,000 286,257,000 284,560,000 278,310,000 281,412,000 276,693,000 264,750,000 262,141,000 261,305,000 196,131,000 159,561,000 152,768,000 152,412,000 149,628,000 146,167,000 142,068,000 141,129,000 140,399,000 136,165,000 133,559,000 134,892,000 133,280,000 120,534,000 122,110,000 125,842,000 126,088,000 120,402,000 120,013,000 129,767,000 127,389,000 120,727,000 125,747,000 128,382,000 127,114,000 365,396,000 121,410,000 121,600,000 124,368,000 355,490,000 133,742,000 116,461,000 119,658,000 370,623,000 122,798,000 123,381,000 119,648,000  116,980,000 108,760,000 106,715,000 314,706,000 105,632,000 108,825,000 104,069,000  93,626,000 111,484,000 101,688,000  98,991,000 95,935,000 
      yoy
    8.28% 8.50% 7.58% 6.61% 4.69% 3.60% 8.96% 13.68% 14.43% 14.34% 8.77% 4.03% 4.79% 5.93% -1.10% 5.20% 24.90% 28.48% 8.36% -0.54% -13.93% -16.22% -0.91% 1.47% 1.43% -1.97% 3.46% 7.48% 6.17% 7.69% 41.08% 65.92% 71.59% 71.45% 31.08% 9.16% 7.53% 7.99% 6.57% 7.35% 6.37% 4.62% 5.34% 12.97% 9.38% 7.19% 5.70% 0.11% 1.75% -3.02% -1.02% -0.27% -4.56% 1.08% 0.22% -66.96% 3.57% 5.58% 2.21% 2.79% -9.22% 4.41% 3.94% -4.08% 8.91% -5.61% 0.01%  4.97% 13.44% 12.12%  10.74% -0.06% 2.54%  12.82% -2.39% 2.34%  -5.42% 16.21%     
      qoq
    2.04% 4.29% 1.77% -0.02% 2.25% 3.41% 0.84% -1.81% 1.18% 8.76% 5.22% -1.17% 1.10% 3.46% 0.63% -0.44% 2.19% -3.40% 7.04% 18.20% 5.12% -18.52% -1.76% 2.29% 2.32% -3.63% 0.60% 2.25% -1.10% 1.71% 4.51% 1.00% 0.32% 33.23% 22.92% 4.45% 0.23% 1.86% 2.37% 2.89% 0.67% 0.52% 3.11% 1.95% -0.99% 1.21% 10.57% -1.29% -2.97% -0.20% 4.72% 0.32% -7.52% 1.87% 5.52% -3.99% -2.05% 1.00% -65.21% 200.96% -0.16% -2.23% -65.02% 165.80% 14.84% -2.67% -67.71% 201.82% -0.47% 3.12%   7.56% 1.92% -66.09% 197.93% -2.93% 4.57%   -16.02% 9.63%   3.19%  
      operating expenses:
                                                                                          
      depreciation and amortization
    106,422,000 105,936,000 102,799,000 99,535,000 96,774,000 95,206,000 100,955,000 100,968,000 97,585,000 98,909,000 87,505,000 83,161,000 82,707,000 82,235,000 80,270,000 79,350,000 77,842,000 76,396,000 75,459,000 74,217,000 84,808,000 85,058,000 89,295,000 91,644,000 91,856,000 93,589,000 97,194,000 92,876,000 89,183,000 89,105,000 88,525,000 90,444,000 91,474,000 92,230,000 60,053,000 42,606,000 40,705,000 40,299,000 38,716,000 37,580,000 37,032,000 36,225,000 35,992,000 37,446,000 36,417,000 36,023,000 37,905,000 34,389,000 33,184,000 31,930,000 32,764,000 30,942,000 30,155,000 33,045,000 32,841,000 32,123,000 33,166,000 32,057,000 35,190,000 93,324,000 30,407,000 31,499,000 31,331,000 87,123,000 29,801,000 29,843,000 28,083,000 77,609,000 27,130,000 26,929,000 25,522,000  24,364,000 21,988,000 21,518,000 62,705,000 21,989,000 21,667,000 21,147,000  20,438,000 21,166,000 21,004,000  20,375,000 20,330,000 
      property operating expense
    73,300,000 70,188,000 65,471,000 60,759,000 68,459,000 65,395,000 60,477,000 59,491,000 63,274,000 64,566,000 59,227,000 54,394,000 51,022,000                                                                          
      real estate taxes
    51,410,000 51,342,000 47,080,000 47,500,000 46,360,000 48,901,000 45,729,000 45,478,000 44,307,000 48,403,000 40,171,000 38,509,000 38,477,000 38,300,000 37,926,000 36,700,000 36,869,000 34,737,000 35,779,000 35,447,000 35,938,000 36,793,000 35,887,000 34,973,000 33,601,000 33,506,000 34,155,000 40,760,000 35,129,000 31,541,000 30,425,000 30,087,000 29,315,000 28,871,000 21,450,000 16,698,000 17,058,000 16,769,000 15,870,000 15,013,000 16,044,000 15,667,000 15,131,000 14,502,000 14,832,000 14,898,000 14,799,000 12,696,000 13,553,000 14,204,000 13,898,000 12,976,000 13,306,000 14,143,000 15,289,000 13,379,000 13,533,000 14,297,000 14,703,000 40,776,000 13,980,000 14,418,000 14,533,000 39,372,000 14,451,000 14,158,000 14,114,000 35,881,000 12,757,000 12,429,000 12,878,000  11,608,000 11,546,000 11,374,000 32,172,000 10,653,000 11,376,000 10,853,000  10,184,000 10,148,000 10,488,000  10,410,000 10,045,000 
      general and administrative
    25,606,000 25,267,000 27,060,000 25,480,000 21,600,000 26,022,000 25,073,000 24,238,000 26,132,000 26,558,000 20,903,000 25,065,000 25,280,000 23,193,000 20,273,000 17,645,000 18,792,000 19,955,000 17,789,000 19,187,000 19,582,000 21,202,000 13,705,000 18,262,000 16,705,000 18,717,000 21,300,000 13,544,000 17,564,000 16,776,000 17,606,000 18,006,000 15,199,000 16,746,000 17,673,000 16,632,000 16,046,000 16,350,000 16,299,000 19,373,000 14,750,000 15,099,000 16,378,000 16,359,000 14,463,000 15,223,000 14,198,000 13,292,000 15,001,000 14,966,000 17,975,000 15,917,000 15,641,000 14,020,000 16,122,000 12,316,000 11,671,000 15,177,000 16,954,000 41,953,000 14,371,000 14,639,000 13,735,000 41,985,000 12,151,000 9,292,000 15,884,000 40,001,000 9,494,000 13,153,000 14,123,000  12,159,000 12,907,000 12,297,000 34,730,000 10,765,000 10,830,000 10,803,000  9,148,000 9,402,000 8,652,000  7,232,000 7,221,000 
      other operating expenses
    1,001,000 3,447,000 1,770,000 1,944,000 1,688,000 1,504,000 3,654,000 3,066,000 2,643,000 4,741,000 3,533,000 1,682,000  2,427,000 949,000 617,000 2,173,000 3,064,000 812,000 1,177,000 1,208,000 2,480,000 1,337,000 3,328,000 1,819,000 1,533,000 1,134,000 3,261,000 2,045,000 2,799,000 1,632,000 7,604,000 3,195,000 6,616,000 71,512,000 8,286,000 1,046,000 2,440,000 2,306,000 3,011,000 1,880,000 1,779,000 1,166,000 2,831,000 2,062,000 1,795,000                                         
      total operating expenses
    257,739,000 256,180,000 244,180,000 235,218,000 234,881,000 237,028,000 235,888,000 233,241,000 233,941,000 243,177,000 211,339,000 202,811,000 196,989,000 198,515,000 188,995,000 182,062,000 182,137,000 183,089,000 173,307,000 176,594,000 182,881,000 185,565,000 182,593,000 193,024,000 185,676,000 190,104,000 194,421,000 193,551,000 184,478,000 182,072,000 180,704,000 186,243,000 177,203,000 180,568,000 200,451,000 109,477,000 98,228,000 99,567,000 95,876,000 96,836,000 89,467,000 88,955,000 89,839,000 90,774,000 85,923,000 87,437,000 89,580,000 83,266,000 79,695,000 80,662,000 84,069,000 80,763,000 77,151,000 79,283,000 84,435,000 80,791,000 78,698,000 81,713,000 86,143,000 233,040,000 78,582,000 78,970,000 80,210,000 229,260,000 78,759,000 74,538,000 74,289,000 206,910,000 70,154,000 68,287,000 68,824,000  63,611,000 61,065,000 58,755,000 184,917,000 55,604,000 58,247,000 58,703,000  53,308,000 54,490,000 55,164,000  53,606,000 51,401,000 
      other expense, net:
                                                                                          
      interest expense
    52,185,000 49,940,000 51,323,000 50,272,000 48,013,000 47,051,000 47,022,000 43,178,000 42,868,000 42,093,000 38,807,000 36,956,000 36,393,000 36,388,000 36,361,000 36,699,000 36,738,000 36,429,000 35,993,000 35,812,000 40,794,000 40,375,000 37,436,000 38,086,000 38,253,000 37,173,000 37,752,000 36,979,000 36,618,000 38,074,000 36,785,000 24,321,250 34,679,000 35,407,000 27,199,000 17,622,250 21,945,000 24,401,000 24,142,000 19,601,750 25,099,000 26,675,000                                             
      gain on sale of real estate, net of tax
    -7,194,000 -18,459,000 -6,198,000  -101,000 -318,000 -11,360,000 -11,081,000 -11,403,000 -146,000 -184,000 -81,000 -250,000 -2,546,000 -220,000 -4,291,000 -101,948,000 -52,921,000 -6,719,000 -19,781,000 -3,237,000 -7,448,000 -38,005,000 -6,423,000 -887,000 -442,000 -16,490,000 -32,791,000 3,228,000 1,123,000 96,000 22,519,000 131,000 4,366,000 415,000 24,324,000 9,580,000       25,479,000 27,558,000                                          
      net investment expense
    -695,000                                                                                      
      total other expense
    44,296,000 30,003,000 45,897,000 51,040,000 48,673,000 59,362,000 34,290,000 31,394,000 29,214,000 38,632,000 39,643,000 35,133,000  3,129,000 37,356,000                                                          15,023,000 16,862,000 -6,256,000   10,524,000 3,784,000  19,206,000 18,719,000 14,534,000  12,153,000 14,998,000 
      income before equity in income of investments in real estate partnerships
    110,418,000 118,011,000 97,493,000 94,590,000 97,358,000 76,146,000 90,088,000 92,615,000 100,697,000                                     20,638,000 16,533,000 11,892,000 10,628,000 17,361,000 15,258,000 -39,675,000 14,381,000 -1,866,000 17,358,000 4,717,000 7,537,000 16,249,000  8,012,000 13,439,000 11,190,000 15,477,000 65,413,000 -77,679,000 13,914,000 18,851,000                    
      equity in income of investments in real estate partnerships
    22,380,000 90,121,000 15,124,000 13,759,000 14,495,000 12,531,000 13,488,000 12,314,000 11,961,000 14,239,000 12,517,000 11,869,000 11,916,000 11,969,000 11,209,000 23,842,000 12,804,000 20,742,000 14,243,000 435,000 8,116,000 2,824,000 11,418,000 17,283,000 -283,000 13,128,000 30,828,000 13,426,000 10,024,000 9,174,000 10,349,000 9,537,000 12,221,000 12,240,000 9,342,000 9,900,000 22,647,000 11,050,000 12,920,000 4,517,000 5,667,000 6,757,000 5,567,000 8,917,000 5,713,000 8,832,000 7,808,000 6,568,000 13,262,000 6,012,000 5,876,000 4,634,000 5,403,000 10,804,000 2,966,000 4,855,000 4,825,000 2,688,000  -14,986,000 2,102,000 1,782,000 -3,892,000 -24,289,000 -2,084,000 -26,213,000 1,902,000 3,475,000 1,817,000 1,122,000 2,635,000  1,677,000 780,000 3,788,000 2,002,000 578,000 -338,000 755,000  -3,953,000 946,000 2,391,000  2,199,000 1,944,000 
      net income
    132,798,000 208,132,000 112,617,000 108,349,000 111,853,000 88,677,000 103,576,000 104,929,000 112,658,000 92,034,000 92,173,000 88,172,000 98,488,000 96,385,000 88,847,000 105,987,000 196,816,000 68,983,000 118,848,000 96,832,000 13,310,000 19,574,000 -24,783,000 41,131,000 57,944,000 52,690,000 91,493,000 79,737,000 70,534,000 48,589,000 53,465,000 85,941,000 63,582,000 50,173,000 -20,715,000 61,658,000 11,114,000 40,644,000 53,577,000 23,539,000 59,734,000 38,280,000 30,992,000 79,188,000 53,440,000 31,161,000 25,056,000 52,017,000 40,664,000 37,469,000 21,134,000 -31,694,000 19,820,000 11,348,000 26,735,000 14,180,000 14,541,000 18,937,000 8,130,000 334,000 15,865,000 12,709,000 18,408,000 45,868,000 -78,611,000 -11,285,000 25,713,000 76,724,000 59,464,000 36,785,000 31,638,000  41,899,000 49,284,000 56,988,000 174,200,000 44,311,000 37,047,000 70,775,000  32,063,000 43,880,000 38,348,000  37,746,000 26,456,000 
      yoy
    18.73% 134.71% 8.73% 3.26% -0.71% -3.65% 12.37% 19.00% 14.39% -4.51% 3.74% -16.81% -49.96% 39.72% -25.24% 9.45% 1378.71% 252.42% -579.55% 135.42% -77.03% -62.85% -127.09% -48.42% -17.85% 8.44% 71.13% -7.22% 10.93% -3.16% -358.10% 39.38% 472.09% 23.45% -138.66% 161.94% -81.39% 6.18% 72.87% -70.27% 11.78% 22.85% 23.69% 52.23% 31.42% -16.84% 18.56% -264.12% 105.17% 230.18% -20.95% -323.51% 36.30% -40.07% 228.84% 4145.51% -8.35% 49.00% -55.83% -99.27% -120.18% -212.62% -28.41% -40.22% -232.20% -130.68% -18.73%  41.92% -25.36% -44.48%  -5.44% 33.03% -19.48%  38.20% -15.57% 84.56%  -15.06% 65.86%     
      qoq
    -36.20% 84.81% 3.94% -3.13% 26.14% -14.38% -1.29% -6.86% 22.41% -0.15% 4.54% -10.47% 2.18% 8.48% -16.17% -46.15% 185.31% -41.96% 22.74% 627.51% -32.00% -178.98% -160.25% -29.02% 9.97% -42.41% 14.74% 13.05% 45.16% -9.12% -37.79% 35.17% 26.73% -342.21% -133.60% 454.78% -72.66% -24.14% 127.61% -60.59% 56.04% 23.52% -60.86% 48.18% 71.50% 24.37% -51.83% 27.92% 8.53% 77.29% -166.68% -259.91% 74.66% -57.55% 88.54% -2.48% -23.21% 132.93% 2334.13% -97.89% 24.83% -30.96% -59.87% -158.35% 596.60% -143.89% -66.49% 29.03% 61.65% 16.27%   -14.98% -13.52% -67.29% 293.13% 19.61% -47.66%   -26.93% 14.43%   42.67%  
      net income margin %
    32.20% 51.49% 29.06% 28.45% 29.36% 23.80% 28.75% 29.37% 30.96% 25.59% 27.88% 28.06% 30.97% 30.65% 29.23% 35.09% 64.86% 23.23% 38.67% 33.72% 5.48% 8.47% -8.74% 14.25% 20.53% 19.10% 31.96% 28.02% 25.34% 17.27% 19.32% 32.46% 24.25% 19.20% -10.56% 38.64% 7.28% 26.67% 35.81% 16.10% 42.05% 27.12% 22.07% 58.16% 40.01% 23.10% 18.80% 43.16% 33.30% 29.77% 16.76% -26.32% 16.51% 8.74% 20.99% 11.75% 11.56% 14.75% 6.40% 0.09% 13.07% 10.45% 14.80% 12.90% -58.78% -9.69% 21.49% 20.70% 48.42% 29.81% 26.44% NaN% 35.82% 45.31% 53.40% 55.35% 41.95% 34.04% 68.01% NaN% 34.25% 39.36% 37.71% NaN% 38.13% 27.58% 
      noncontrolling interests:
                                                                                          
      exchangeable operating partnership units
    -2,617,000 -4,177,000 -1,664,000 -586,000 -642,000 -502,000 -593,000 -601,000 -642,000 -518,000 -520,000 -550,000 -420,000 -411,000 -379,000 -452,000 -863,000 -300,000 -519,000 -432,000 -57,000 -87,000 115,000 -178,000 -157,000 -109,000 -190,000 -167,000 -147,000 -100,000 -111,000 -171,000 -132,000 -104,000 19,000 -92,000 -16,000 -64,000 -85,000 -36,000 -94,000 -61,000 -49,000 -134,000 -90,000 -53,000 -42,000 -93,000 -73,000 -70,000 -39,000 10,000 -39,000 -23,000 -54,000 -26,000 -27,000 -37,000 -13,000 -50,000 -34,000 -27,000 -94,000 -246,000 462,000 92,000 -164,000                    
      limited partners' interests in consolidated partnerships
    -1,632,000 -1,476,000 -1,580,000 -1,742,000 -1,624,000 -1,698,000 -1,514,000 -1,660,000 -2,242,000 -640,000 -933,000 -840,000 -787,000 -588,500 -890,000 -739,000                                                                       
      net income attributable to noncontrolling interests
    -4,249,000 -5,653,000 -3,244,000 -2,328,000 -2,266,000 -2,200,000 -2,107,000 -2,261,000 -2,884,000                                               -824,000 -1,112,000 -1,157,000 -1,026,000 -3,124,000 -1,061,000 -1,037,000 -1,121,000 -140,500 -562,000 -976,000 -1,231,000                    
      net income attributable to the company
    128,549,000 202,479,000 109,373,000 106,021,000 109,587,000 86,477,000 101,469,000 102,668,000 109,774,000 89,774,000 90,720,000                 78,905,000 69,722,000 47,841,000 52,660,000 85,139,000 62,813,000 49,493,000 -21,367,000 61,133,000 10,571,000 40,076,000 53,143,000 22,875,000 58,997,000 37,746,000 30,440,000 78,779,000 53,208,000 30,748,000 24,655,000 51,591,000 40,264,000 37,129,000 20,820,000                                    
      preferred stock dividends
    -3,413,000 -3,411,000 -3,413,000 -3,413,000 -3,413,000 -3,411,000 -3,413,000 -3,413,000 -3,413,000 -3,413,000 -1,644,000                         -5,265,000 -5,266,000 -5,266,000 -5,266,000 -5,265,000 -5,266,000 -5,266,000 -5,266,000 -5,265,000 -5,266,000 -5,266,000 -5,266,000 -5,265,000 -5,266,000 -5,265,000 -5,266,000 -5,266,000 -7,932,000 -5,396,000 -13,937,000 -4,919,000 -4,919,000 -4,919,000 -4,919,000 -14,756,000 -4,919,000 -4,919,000 -4,919,000 -14,756,000 -4,919,000 -4,919,000 -4,919,000 -14,756,000 -4,919,000 -4,919,000 -4,919,000  -4,919,000 -4,919,000 -4,919,000 -14,756,000 -4,919,000 -4,919,000 -4,919,000  -4,500,000 -3,663,000 -3,662,000  -2,177,000 -1,397,000 
      net income attributable to common shareholders
    125,136,000 199,068,000 105,960,000 102,608,000 106,174,000 83,066,000 98,056,000 99,255,000 106,361,000 86,361,000 89,076,000 86,782,000 97,281,000                                                                          
      net income attributable to common shareholders:
                                                                                          
      per common share - basic
    680 1,090 580 570 590 460 540 540                                                                               
      per common share - diluted
    680 1,090 580 560 580 450 540 540                                                                               
      provision for impairment of real estate
     -30,000 3,374,000 1,262,000                                                                                   
      loss on early extinguishment of debt
            180,000                                                                              
      net investment income
     -1,448,000 -2,602,000 -788,000    -703,000 -2,431,000               -922,500 -370,000 -966,000 -2,354,000                                                            
      loss on sale of real estate, net of tax
       294,000                                                                                   
      net investment loss
        761,000 -1,675,000 -1,372,000   -3,216,000 1,020,000 -1,742,000  -2,256,000 1,215,000 5,468,000 2,494,000 -818,750 209,000    4,923,000                                                                
      net income per common share - basic
            580                                                                              
      net income per common share - diluted
            580                                                                              
      other expense:
                                                                                          
      income from operations before equity in income of investments in real estate partnerships
             77,795,000 79,656,000 76,303,000 86,572,000 84,416,000 77,638,000 82,145,000 184,012,000 48,241,000 104,605,000 96,397,000 5,194,000 16,750,000 -36,201,000 39,613,500 58,227,000 39,562,000 60,665,000 34,648,000 57,282,000 38,292,000 43,020,000 13,580,500 51,230,000 33,813,000 -30,422,000 27,434,000 -21,113,000 29,046,000 27,789,000 17,631,000 26,312,000 25,866,000 24,622,000                                            
      income attributable to noncontrolling interests
             -2,260,000 -1,453,000 -1,390,000 -1,207,000 -1,122,000 -1,269,000 -1,191,000 -1,588,000 -1,124,000 -1,442,000 -1,342,000 -622,000 -528,000 -549,000 -840,000 -979,000 -962,000 -1,047,000 -832,000 -812,000 -748,000 -805,000 -802,000 -769,000 -680,000  -525,000 -543,000 -568,000 -434,000 -664,000 -737,000 -534,000 -552,000 -409,000 -232,000 -413,000 -401,000     -219,000 -251,000                                  
      income per common share - basic
             460 500 510 570 560 510 610 1,140 390 690 560 70 110 -150 240 340 310 540 470 410 280 310 520 350 280 -260 550 50 360 490 295 570 350 270                                            
      income per common share - diluted
             470 500 510 570 550 510 610 1,140 400 690 560 70 110 -150 240 340 310 540 460 410 280 310 520 350 280 -260 540 50 350 490 295 570 340 270                                            
      other operating incomes
                -497,000                                                                          
      other income:
                                                                                          
      net investment (income) loss
                -1,727,000       -1,998,000 -2,046,000 -4,359,000                                                                 
      total other income
                34,416,000   37,876,000 -62,716,000 65,594,000 29,463,000 14,168,000 54,869,000 28,798,000 137,266,000 71,860,000 38,373,000 46,206,000 31,171,000 20,250,000 36,550,000 61,048,000 52,969,000 34,359,000 33,708,000 46,924,000 26,102,000 31,354,000 75,653,000 23,799,000 25,963,000 31,700,000 26,289,000 26,308,000 25,938,000 1,595,000 27,467,000 26,817,000 27,167,000 25,376,000 31,787,000 27,819,000 26,761,000 79,314,000 28,481,000 52,350,000 25,596,000 35,219,000 39,512,000 30,420,000 30,120,000 124,344,000 29,389,000 31,440,000 28,681,000 60,817,000 132,662,000 28,009,000 26,518,000 108,899,000 -1,606,000 23,453,000 20,320,000     9,383,000 4,707,000          
      operating and maintenance
                 35,947,000 49,577,000 47,750,000 46,461,000 48,937,000 43,468,000 46,566,000 41,345,000 40,032,000 42,369,000 44,817,000 41,695,000 42,759,000 40,638,000 43,110,000 40,557,000 41,851,000 42,516,000 40,102,000 38,020,000 36,105,000 29,763,000 25,255,000 23,373,000 23,709,000 22,685,000 21,859,000 19,761,000 20,185,000 21,172,000 19,636,000 18,149,000 19,498,000 20,505,000 18,796,000 17,040,000 17,982,000 17,909,000 17,198,000 16,389,000 17,806,000 18,594,000 17,520,000 18,101,000 17,861,000 19,575,000 53,033,000 17,342,000 17,279,000 17,649,000 49,483,000 16,578,000 15,547,000 15,920,000 44,206,000 15,162,000 15,107,000 15,504,000  13,855,000 13,363,000 13,106,000 38,558,000 13,022,000 12,641,000 12,242,000  13,334,000 13,240,000 13,592,000  14,110,000 13,142,000 
      net income attributable to common stockholders
                 95,263,000 87,578,000 104,796,000 195,228,000 67,859,000 117,406,000 95,490,000 12,688,000 19,046,000 -25,332,000 40,291,000 56,965,000 51,728,000 90,446,000 78,905,000 69,722,000 47,841,000 52,660,000 85,139,000 59,666,000 48,368,000 -33,223,000 55,868,000 5,305,000 34,810,000 47,877,000 17,610,000 53,731,000 32,480,000 25,174,000 73,514,000 47,942,000 25,482,000 19,389,000 46,326,000 34,998,000 31,864,000 15,554,000 -37,179,000 11,637,000 5,697,000 13,181,000 8,139,000 8,510,000 12,861,000 2,185,000 -17,546,000 9,885,000 6,753,000 12,368,000 27,713,000 -84,092,000 -17,180,000 19,563,000                    
      benefit from impairment of real estate
                     84,274,000 -20,000 135,000                                                                   
      limited partners’ interests in consolidated partnerships
                    -725,000 -824,000 -923,000 -910,000 -565,000 -441,000 -664,000 -662,000 -822,000 -853,000 -857,000 -665,000 -665,000 -648,000 -694,000 -631,000 -637,000 -576,000 -671,000 -433,000 -527,000 -504,000 -349,000 -628,000 -643,000 -473,000 -503,000 -275,000 -142,000 -360,000 -359,000 -333,000 -327,000 -270,000 -275,000 -229,000 -212,000 -232,000 -192,000 -165,000 -154,000 -189,000 -82,000 -280,000 -96,000 -79,000 -96,000                        
      goodwill impairment
                          132,128,000                                                                
      early extinguishment of debt
                        19,358,000    1,391,000  10,591,000   11,010,000 162,000 45,000  12,404,000  297,000 13,943,000   8,300,000   -61,000          852,000           75,000 2,709,000                      
      benefit from impairment of real estate, net of tax
                         230,000 784,000                                                                
      benefit from impairment, net of tax
                           42,075,000 -14,000 10,441,000 1,672,000 7,360,750 855,000 12,533,000                                                         
      minimum rent
                               204,259,000 204,005,000 208,827,000 201,392,000 195,453,000 195,393,000 195,992,000 141,240,000 114,799,000 111,886,000 109,945,000 107,674,000 106,389,000 105,071,000 102,390,000 101,305,000 99,762,000 98,620,000 97,778,000 94,536,000 87,729,000 90,178,000 89,611,000 90,726,000 86,760,000 88,003,000 92,725,000 92,365,000 87,928,000 90,129,000 89,684,000 89,384,000 260,090,000 87,032,000 86,109,000 86,428,000 256,739,000 88,871,000 86,341,000 86,011,000 247,523,000 86,809,000 86,913,000 85,605,000  81,033,000 77,960,000 77,456,000 219,608,000 75,783,000 75,850,000 74,214,000  73,181,000 72,704,000 73,682,000  72,606,000 71,832,000 
      percentage rent
                               1,194,000 1,224,000 1,196,000 3,873,000 1,126,000 1,147,000 1,456,000 2,906,000 1,477,000 495,000 453,000 1,703,000 1,157,000 486,000 300,000 1,808,000 1,187,000 371,000 545,000 1,384,000 1,326,000 415,000 298,000 1,548,000 1,392,000 378,000 398,000 1,160,000 1,508,000 430,000 151,000 907,000 2,140,000 400,000 264,000 360,000 3,350,000 235,000 307,000 700,000 3,629,000 631,000 281,000 800,000  889,000 342,000 735,000 3,426,000 1,002,000 527,000 437,000  855,000 270,000 551,000  733,000 339,000 
      recoveries from tenants and other income
                               71,612,000 66,127,000 64,502,000 64,270,000 61,366,000 59,554,000 57,256,000 45,279,000 36,717,000 34,532,000 35,874,000 33,487,000 31,090,000 30,725,000 32,431,000 31,048,000 29,474,000 28,787,000 30,316,000 31,041,000 25,577,000 25,823,000 29,192,000 27,053,000 25,799,000 25,191,000 30,175,000 26,714,000 24,304,000 28,248,000 26,352,000 28,965,000 80,290,000 27,454,000 25,709,000 30,649,000 72,718,000 29,030,000 22,915,000 25,191,000 71,185,000 27,612,000                  
      net investment (income) loss, including unrealized (gains) losses of (484) and (400), and (842) and (1,705) for the three and nine months ended september 30, 2018 and 2017, respectively
                               -381,000 -923,000                                                          
      income from operations
                               42,035,000 67,306,000 47,466,000 53,369,000 63,422,000 63,451,000 45,807,000 -21,130,000 37,334,000 1,534,000 40,096,000 40,709,000 22,148,000 31,979,000 32,623,000 30,189,000                                            
      yoy
                               -33.72% 6.08% 3.62% -352.57% 69.88% 4036.31% 14.24% -151.90% 68.57% -95.20% 22.91% 34.85%                                                
      qoq
                               -37.55% 41.80% -11.06% -15.85% -0.05% 38.52% -316.79% -156.60% 2333.77% -96.17% -1.51% 83.80% -30.74% -1.97% 8.06%                                             
      operating margin %
    0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 14.77% 24.18% 16.87% 19.29% 23.96% 24.20% 17.53% -10.77% 23.40% 1.00% 26.31% 27.21% 15.15% 22.51% 23.12% 21.50% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% 0% 0% 0% 0% 0% 0% 0% NaN% 0% 0% 0% NaN% 0% 0% 
      preferred stock dividends and issuance costs
                                    -3,147,000 -1,125,000 -11,856,000                                                    
      net investment (income) loss, including unrealized (gains) losses of (291) and (11), and 84 and (863) for the three and six months ended june 30, 2018 and 2017, respectively
                                 -569,000                                                         
      benefit from impairment
                                  16,054,000     416,500   1,666,000     1,032,000   225,000  6,000,000   50,161,000 1,147,000 23,508,000  7,410,000 6,362,000       -4,514,000 102,033,000 2,369,000                     
      net investment (income) loss, including unrealized losses (gains) of 384 and (852) for the three months ended march 31, 2018 and 2017, respectively
                                  -32,000                                                        
      income tax expense of taxable reit subsidiary
                                     246,000 50,000                                                    
      net investment (income) loss, including unrealized (gains) losses of (842) and (383), and (1,705) and (888) for the three and nine months ended september 30, 2017 and 2016, respectively
                                   -738,750 -971,000                                                      
      loss on derivative instruments
                                        40,586,000                         579,000 343,000                        
      net investment (income) loss, including unrealized (gains) losses of (11) and (863), and (275) and 892 for the three and six months ended june 30, 2017 and 2016, respectively
                                     -887,000                                                     
      net investment (income) loss, including unrealized (gains) losses of (852) and (230) for the three months ended march 31, 2017 and 2016, respectively
                                      -1,097,000                                                    
      loss attributable to noncontrolling interests
                                      -652,000                                                    
      net investment (income) loss, including unrealized (gains) losses of (383) and 1,296, and (888) and 1,771 for the three and nine months ended september 30, 2016 and 2015, respectively
                                       -317,000 -821,000                                                  
      net investment income, including unrealized losses (gains) of (275) and 892, and (505) and 475 for the three and six months ended june 30, 2016 and 2015, respectively
                                         -602,000                                                 
      gain on sale of real estate
                                         548,000 12,868,000 1,391,000 27,755,000 5,657,000 803,000   1,691,000 715,000 -70,000 56,000 1,717,000  4,199,000 -228,000 21,000 -1,834,000                                
      net investment loss (income), including unrealized gains of 230 and 417 for the three months ended march 31, 2016 and 2015, respectively
                                          155,000                                                
      net investment loss (income), including unrealized losses of 1,296 and 472, and 1,771 and 289 for the three and nine months ended september 30, 2015 and 2014, respectively
                                           47,500 1,190,000                                              
      net investment income, including unrealized losses (gains) of 892 and (290), and 475 and (183) for the three and six months ended june 30, 2015 and 2014, respectively
                                             -367,000                                             
      interest expense, net of interest income of 266 and 216 for the three months ended march 31, 2015 and 2014, respectively
                                              26,633,000                                            
      net investment income, including unrealized (gains) losses of (417) and 107 for the three months ended march 31, 2015 and 2014, respectively
                                              -634,000                                            
      interest expense, net of interest income of 221 and 350, and 901 and 1,101 for the three and nine months ended september 30, 2014 and 2013, respectively
                                               20,535,250 27,561,000                                          
      net investment (income) loss, including unrealized losses (gains) of 472 and (875), and 289 and (1,724) for the three and nine months ended september 30, 2014 and 2013, respectively
                                               -228,750 -94,000                                          
      income from continuing operations before equity in income of investments in real estate partnerships and income taxes
                                               14,427,000 20,169,000                                          
      income from continuing operations
                                               53,709,000 25,882,000 29,470,000 24,341,000 18,460,000 23,890,000 23,373,000 21,134,000 -48,265,000 19,784,000 8,938,000 20,324,000 9,572,000 12,362,000 18,937,000 8,126,000 -6,974,000 15,541,000 12,972,000 11,585,000 41,124,000 -79,763,000 -12,299,000 20,753,000 54,556,000 54,648,000 31,397,000 31,737,000  38,575,000 30,179,000 56,255,000 111,230,000 43,915,000 34,402,000 39,482,000  17,785,000 35,329,000 29,146,000  25,292,000 23,964,000 
      discontinued operations, net:
                                                                                          
      operating income
                                                   3,136,000 666,000 969,000  1,163,000 36,000 106,000 110,000 987,000 -142,000  4,000 -267,000 322,000 -231,000 26,000                        
      gain on sale of operating properties, net of tax
                                                                                          
      income from discontinued operations
                                                   33,627,000 16,718,000 12,379,000  14,413,000 36,000 2,410,000 6,411,000 4,608,000 2,179,000  4,000 7,308,000 324,000 -263,000 6,823,000 4,744,000 1,152,000 1,014,000 4,960,000 22,168,000 4,816,000 5,388,000 -99,000  3,324,000 19,105,000 733,000 62,970,000 396,000 2,645,000 31,293,000  14,278,000 8,551,000 9,202,000  12,454,000 2,492,000 
      income per common share - basic:
                                                                                          
      continuing operations
                                               800 520 280 210 140 200 210 170 -580 130 30 70 40 70 140 20 -310 120 80 70 250 -1,070 -240 210 570 710 380 380  480 360 740 1,420 560 430 510  200 500 400  380 370 
      discontinued operations
                                                   360 180 140  160  30 70 50 20      80 60 20 10 70 310 70 70   50 280 10 920 10 40 460  220 140 150  200 40 
      income per common share - diluted:
                                                                                          
      interest expense, net of interest income of 465 and 292, and 681 and 751 for the three and six months ended june 30, 2014 and 2013, respectively
                                                 27,445,000                                         
      net investment (income) income from deferred compensation plan, including unrealized (gains) loss of (290) and 17, and (183) and 848 for the three and six months ended june 30, 2014 and 2013, respectively
                                                 -628,000                                         
      gain on sale of operating properties
                                                   30,491,000 16,052,000 11,410,000  13,250,000  2,304,000 6,301,000                                
      income before gain on sale of real estate
                                                 29,470,000 24,341,000 52,087,000 40,608,000 35,752,000 21,134,000                                    
      other incomes
                                                  2,173,000 4,093,000 917,000 1,580,000 1,523,000 3,730,000 1,660,000 269,000 1,589,000 4,912,000 1,901,000 735,000 -905,000 115,000 2,380,000 1,080,000 607,000 4,927,000 3,357,000 929,000 288,000 9,213,000 5,611,000 669,000 797,000     16,752,000 -825,000          
      interest expense, net of interest income of 216 and 459 for the three months ended march 31, 2014 and 2013, respectively
                                                  27,134,000                                        
      net investment income from deferred compensation plan, including unrealized loss (gains) of 107 and (831) for the three months ended march 31, 2014 and 2013, respectively
                                                  -192,000                                        
      interest expense, net of interest income of 350 and 379, and 1,101 and 1,291 for the three and nine months ended september 30, 2013 and 2012, respectively
                                                   20,590,750 26,750,000                                      
      net investment income from deferred compensation plan, including unrealized gains of 875 and 618, and 1,724 and 1,343 for the three and nine months ended september 30, 2013 and 2012, respectively
                                                   -499,500 -963,000                                      
      income from continuing operations before tax
                                                   18,460,000 23,890,000 23,373,000 21,134,000                                    
      income tax benefit of taxable reit subsidiary
                                                                                          
      preferred units
                                                          629,000 -931,000 -931,000 -931,000 -931,000 -2,794,000 -931,000 -931,000 -931,000 -2,794,000 -931,000 -931,000 -931,000                    
      (income) loss attributable to noncontrolling interests
                                                   -263,750 -400,000 -340,000 -314,000   -255,000                                 
      interest expense, net of interest income of 292 and 377, and 751 and 913 for the three and six months ended june 30, 2013 and 2012, respectively
                                                     27,781,000                                     
      net investment loss (income) from deferred compensation plan, including unrealized gains (loss) of 17 and (499), and 848 and 725 for the three and six months ended june 30, 2013 and 2012, respectively
                                                     38,000                                     
      interest expense, net of interest income of 459 and 535 in 2013 and 2012, respectively
                                                      27,832,000                                    
      net investment income from deferred compensation plan, including unrealized gains of 831 and 1,224 in 2013 and 2012, respectively
                                                      -1,071,000                                    
      interest expense, net of interest income of 379 and 613, and 1,291 and 1,802 for the three and nine months ended september 30, 2012 and 2011, respectively
                                                       21,199,000 27,462,000                                  
      net investment (income) income from deferred compensation plan, including unrealized (gains) losses of (618) and 2,313 and (1,343) and 1,582 for the three and nine months ended september 30, 2012 and 2011, respectively
                                                       -459,000 -752,000                                  
      net income attributable to controlling interests
                                                       14,445,000 19,569,000 11,093,000 27,118,000 13,058,000 13,429,000 17,780,000 7,104,000 -2,790,000 14,804,000 11,672,000 17,287,000 75,212,000 -79,173,000 -12,261,000 24,482,000                    
      interest expense, net of interest income of 377 and 587, and 913 and 1,188 for the three and six months ended june 30, 2012 and 2011, respectively
                                                         28,377,000                                 
      net investment income from deferred compensation plan, including unrealized gains of (499) and 88, and 725 and 731 for the three and six months ended june 30, 2012 and 2011, respectively
                                                         444,000                                 
      interest expense, net of interest income of 535 and 601 in 2012 and 2011, respectively
                                                          28,958,000                                
      net investment income from deferred compensation plan, including 1,224 and 643 of unrealized gains
                                                          -1,528,000                                
      loss (income) attributable to noncontrolling interests
                                                          383,000                                
      benefit from doubtful accounts
                                                           541,000 326,000 1,586,000 626,000 3,839,000 102,000 55,000 2,355,000 6,370,000 2,421,000 4,769,000                     
      interest expense, net of interest income
                                                           23,074,250 30,867,000                              
      gain on sale of properties in development
                                                               -119,750 -479,000  -791,000                        
      loss (income) from deferred compensation plan
                                                           348,750 2,283,000                              
      gain on derivative instruments
                                                               922,000 -2,341,000                          
      gain on sale of operating properties and properties in development
                                                           580,250 2,321,000   -995,000 2,000 -32,000 6,797,000   19,000  5,055,000 -25,401,000  -2,934,000  -5,492,000 -3,449,000 -25,645,000 -50,186,000 -15,414,000 -9,593,000 -15,680,000  -3,750,000 -3,598,000 -6,542,000  -7,946,000 -3,667,000 
      interest expense, net of interest income of 587 and 640 for the three months ended june 30, 2011 and 2010, respectively, and 1,188 and 1,315 for the six months ended june 30, 2011 and 2010, respectively
                                                             30,563,000                             
      (income) income from deferred compensation plan
                                                             -143,000                             
      interest expense, net of interest income of 601 and 675 in 2011 and 2010, respectively
                                                              30,865,000                            
      income from deferred compensation plan
                                                              -745,000                            
      income before equity in loss of investments in real estate partnerships
                                                              10,851,000                            
      equity in loss of investments in real estate partnerships
                                                              -2,725,000                            
      interest expense, net of interest income of 444 and 1,133 in 2010 and 2009, respectively
                                                               8,052,250 32,209,000                          
      interest expense, net of interest income of 640 and 823 in 2010 and 2009, respectively
                                                                 30,635,000                         
      loss on sale of properties in development
                                                                 226,000                         
      interest expense, net of interest income of 675 and 906 in 2010 and 2009, respectively
                                                                  29,129,000                        
      net income attributable to common stockholders per share
                                                                  0.15 0.31 -1.05 -0.23 0.28                    
      management, acquisition, and other fees
                                                                   3,901,500 15,606,000 6,898,000 7,756,000 48,286,000 7,746,000 11,966,000 8,447,000                
      interest expense, net of interest income of 1,133 and 1,408 in 2009 and 2008, respectively
                                                                   6,980,000 27,920,000                      
      (gain) loss on sale of operating properties and properties in development
                                                                                          
      operating income from discontinued operations
                                                                   -1,091,000 1,152,000 995,000 1,074,000 8,707,000 896,000 596,000 -99,000  184,000 396,000 733,000 4,630,000 369,000 -450,000 952,000  712,000 973,000 406,000    
      limited partners’ interest in consolidated partnerships
                                                                   -23,250 -93,000 -137,000 -136,000                    
      interest expense, net of interest income of 823 and 657 in 2009 and 2008, respectively
                                                                     25,640,000                     
      interest expense, net of interest income of 906 and 880 in 2009 and 2008, respectively
                                                                      26,518,000                    
      interest expense, net of interest income of 1,408 and 840 in 2008 and 2007, respectively
                                                                       5,670,750 22,683,000                  
      benefit from loss
                                                                       278,000 1,112,000                  
      income before minority interests and equity in income of investments in real estate partnerships
                                                                       54,814,000 54,250,000 31,641,000 30,504,000  38,346,000 30,833,000 54,216,000            
      minority interest of preferred units
                                                                       -2,794,000 -931,000 -931,000 -931,000  -931,000 -931,000 -931,000 -2,794,000 -931,000 -931,000 -931,000  -2,949,000 -2,113,000 -2,112,000  -7,458,000 -5,081,000 
      minority interest of exchangeable operating partnership units
                                                                       -360,000 -366,000 -210,000 -214,000  -276,000 -265,000 -540,000 -1,535,000 -459,000 -457,000 -658,000  -333,000 -751,000 -656,000  -397,000 -400,000 
      minority interest of limited partners
                                                                       -579,000 -122,000 -225,000 -257,000  -241,000 -238,000 -278,000 -4,847,000 -16,000 -4,264,000 -511,000  -45,000 -82,000 -76,000  -85,000 -91,000 
      net income for common stockholders
                                                                       61,968,000 54,545,000 31,866,000 26,719,000  36,980,000 44,365,000 52,069,000 159,444,000 39,392,000 32,128,000 65,856,000  27,563,000 40,217,000 34,686,000  35,569,000 25,059,000 
      net income for common stockholders per share
                                                                       0.88 0.78 0.45 0.38  0.53 0.64 0.75 2.34 0.57 0.47 0.97  0.42 0.64 0.55  0.58 0.41 
      recoveries from tenants
                                                                         24,221,000 24,796,000  24,269,000 22,962,000 22,143,000 63,192,000 22,942,000 20,645,000 21,403,000  20,217,000 20,716,000 21,746,000  21,536,000 20,054,000 
      interest expense, net of interest income of 657 and 811 in 2008 and 2007, respectively
                                                                         23,453,000                 
      interest expense, net of interest income of 880 and 719 in 2008 and 2007, respectively
                                                                          22,538,000                
      benefit from loss on real estate investments
                                                                          716,000                
      income per common share—basic:
                                                                                          
      income per common share—diluted:
                                                                                          
      management, acquisition and other fees
                                                                            10,789,000 7,496,000 6,381,000 26,478,000 5,327,000 12,141,000 7,260,000  3,326,000 16,848,000     
      other expenses
                                                                            1,625,000 1,261,000 460,000   1,733,000 3,658,000  204,000 534,000 1,428,000  1,479,000 663,000 
      interest expense, net of interest income of 840 and 819 in 2007 and 2006, respectively
                                                                            20,515,000              
      income per common share – basic:
                                                                                          
      income per common share – diluted:
                                                                                          
      interest expense, net of interest income of 811 and 937 in 2007 and 2006, respectively
                                                                             20,311,000             
      interest expense, net of interest income of 719 and 1,591 in 2007 and 2006, respectively
                                                                              19,389,000            
      other income
                                                                                          
      interest expense, net of interest income of 864 and 627 in 2006 and 2005, respectively
                                                                               5,030,250 20,121,000          
      income before minority interests
                                                                               120,406,000 45,321,000 40,054,000 41,582,000  21,112,000 38,275,000 31,990,000  33,232,000 29,536,000 
      other expense
                                                                                          
      interest expense, net of interest income of 959 and 558 in 2006 and 2005, respectively
                                                                                 20,117,000         
      interest expense, net of interest income of 1,591 and 486 in 2006 and 2005, respectively
                                                                                  19,464,000        
      interest expense, net of interest income of 627 and 886 in 2005 and 2004, respectively
                                                                                    22,956,000      
      interest expense, net of interest income of 543 and 880 in 2005 and 2004, respectively
                                                                                     22,317,000     
      management fees and commissions
                                                                                      3,318,000  1,917,000 1,766,000 
      interest expense, net of interest income of 505 and 837 in 2005 and 2004, respectively
                                                                                      21,076,000    
      interest expense, net of interest income of 886 and 335 in 2004 and 2003, respectively
                                                                                        20,099,000  
      interest expense, net of interest income of 880 and 385 in 2004 and 2003, respectively
                                                                                         18,665,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 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 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 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 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 
                                                                                         
        assets
                                                                                         
        net real estate investments:
                                                                                         
        real estate assets, at cost
      14,657,529,000 14,342,200,000 13,988,815,000 13,910,190,000 13,698,419,000 13,620,602,000 13,532,046,000 13,456,499,000 13,454,391,000 13,361,194,000 11,953,086,000 11,886,697,000 11,858,064,000 11,769,796,000 11,762,300,000 11,567,492,000 11,495,581,000 11,302,487,000 11,123,004,000 11,165,567,000 11,137,612,000 11,095,294,000 11,142,239,000 10,878,303,000 10,875,058,000 10,863,162,000                                                          
        less: accumulated depreciation
      3,352,228,000 3,180,995,000 3,107,560,000 3,037,614,000 2,960,399,000 2,894,010,000 2,822,272,000 2,748,712,000 2,691,386,000 2,619,345,000 2,549,937,000 2,484,960,000 2,415,860,000 2,360,663,000 2,301,183,000 2,235,869,000 2,174,963,000 2,149,681,000 2,106,958,000 1,893,250,000 1,829,005,000 1,766,162,000 1,723,963,000 1,656,527,000 1,605,681,000 1,535,444,000 1,474,769,000 1,433,120,000 1,394,276,000 1,339,771,000 1,281,510,000 1,225,474,000 1,166,657,000 1,124,391,000 1,108,221,000 1,079,448,000 1,060,922,000 1,043,787,000 1,014,788,000 990,744,000 961,830,000 933,708,000 909,572,000 892,695,000 864,975,000 844,873,000 835,447,000 823,601,000 808,699,000 782,749,000 768,301,000 834,681,000 813,187,000 791,619,000 769,829,000 755,378,000 729,133,000 700,878,000 695,432,000 672,342,000 646,236,000 622,163,000 632,407,000 607,944,000 577,737,000 554,595,000 545,979,000 538,779,000 518,614,000 497,498,000 478,560,000 459,179,000 441,432,000 427,389,000 421,650,000 412,762,000 398,371,000 380,613,000 371,386,000     
        real estate assets
      11,305,301,000 11,161,205,000 10,881,255,000 10,872,576,000 10,738,020,000 10,726,592,000 10,709,774,000 10,707,787,000 10,763,005,000 10,741,849,000 9,403,149,000 9,401,737,000 9,442,204,000 9,409,133,000 9,461,117,000 9,331,623,000 9,320,618,000 9,152,806,000 9,016,046,000 9,272,317,000 9,308,607,000 9,329,132,000    9,327,718,000                                                          
        investments in sales-type leases
      16,788,000 16,668,000 16,609,000 16,520,000 16,291,000                                                                               
        investments in real estate partnerships
      358,620,000 367,837,000 389,828,000 389,175,000 399,044,000 387,413,000 378,091,000 368,709,000 370,605,000 382,300,000 342,439,000 346,390,000 350,377,000 332,248,000 330,887,000 357,998,000 372,591,000 379,704,000 409,627,000 474,285,000 489,500,000 469,522,000 472,863,000 465,495,000 456,733,000 463,001,000 458,051,000 451,220,000 448,257,000 386,304,000 380,930,000 376,800,000 381,691,000 296,699,000 274,940,000 279,270,000 287,500,000 306,206,000 321,164,000 309,544,000 325,243,000 333,167,000 328,398,000 339,922,000 353,772,000 358,849,000 414,509,000 428,606,000 432,287,000 442,927,000 450,021,000 424,726,000 395,933,000 386,882,000 425,460,000 425,559,000 408,238,000 428,592,000 462,778,000 449,413,000 333,963,000 326,212,000 333,620,000 338,107,000 368,313,000 383,408,000 428,730,000 423,138,000 430,889,000 432,910,000 446,653,000 429,106,000 435,251,000 434,090,000 426,494,000 424,844,000 438,228,000 545,617,000 551,697,000     
        net real estate investments
      11,680,709,000 11,545,710,000 11,287,692,000 11,278,271,000 11,153,355,000 11,130,061,000 11,103,691,000 11,088,028,000 11,142,315,000 11,132,707,000 9,745,588,000 9,748,127,000 9,792,581,000              9,874,272,000 9,934,653,000 10,010,225,000 9,939,354,000 9,973,479,000 10,014,231,000 10,196,730,000 4,105,807,000 4,064,932,000 4,051,500,000 3,776,194,000 3,808,319,000 3,805,369,000 3,787,836,000 3,809,200,000 3,809,345,000 3,731,300,000 3,702,682,000 3,700,813,000 3,540,507,000 3,550,059,000 3,564,435,000 3,576,584,000 3,570,090,000 3,512,895,000 3,731,244,000 3,706,336,000 3,697,175,000 3,806,962,000 3,746,891,000 3,680,047,000 3,716,868,000 3,734,974,000 3,710,788,000 3,607,140,000 3,637,827,000 3,788,553,000 3,920,048,000 3,938,191,000 3,871,300,000 3,955,258,000 4,029,177,000 3,957,378,000 3,900,697,000 3,863,056,000 3,744,358,000 3,582,445,000 3,474,244,000 3,497,276,000 3,431,642,000 3,314,978,000 3,394,820,000 3,371,046,000     
        cash, cash equivalents, and restricted cash, including 4,462 and 16,004 of restricted cash at march 31, 2026 and december 31, 2025, respectively
      145,560,000                                                                                   
        tenant and other receivables
      267,639,000 255,543,000 260,824,000 250,210,000 255,495,000 240,114,000 236,999,000 229,407,000 206,162,000 199,439,000 206,053,000 181,579,000 188,863,000 173,572,000 159,643,000 151,852,000 153,091,000 139,287,000 131,510,000 186,232,000 148,058,000 169,337,000 161,381,000 157,883,000 160,635,000 172,359,000    170,985,000    111,722,000                                                  
        deferred leasing costs, less accumulated amortization of 140,264 and 138,391 at march 31, 2026 and december 31, 2025, respectively
      99,462,000                                                                                   
        acquired lease intangible assets, less accumulated amortization of 431,633 and 421,433 at march 31, 2026 and december 31, 2025, respectively
      244,876,000                                                                                   
        right of use assets
      313,508,000 317,580,000 319,091,000 320,317,000 322,287,000 323,660,000 323,015,000 326,047,000 328,002,000 301,821,000 303,716,000 273,702,000 275,513,000 277,656,000 278,153,000 279,892,000 280,783,000 284,317,000 284,440,000 289,739,000 290,993,000 292,786,000 294,051,000 295,084,000 296,859,000                                                           
        other assets
      294,730,000 337,202,000 386,473,000 299,717,000 289,046,000 297,178,000 306,077,000 399,433,000 283,429,000 299,479,000 280,843,000 276,926,000 267,797,000 275,702,000 268,600,000 267,428,000 266,431,000 271,052,000 276,207,000 259,850,000 260,500,000 390,729,000 398,945,000 410,745,000 412,851,000 403,827,000 427,726,000 429,497,000 431,181,000 427,127,000 390,778,000 307,429,000 70,526,000 37,079,000 24,749,000 29,561,000 27,565,000 21,876,000 24,815,000 28,392,000 20,126,000 15,136,000 41,779,000 41,535,000 38,916,000 52,465,000 44,467,000 46,458,000 27,500,000 18,811,000 29,992,000 32,150,000 28,731,000 31,824,000 36,419,000 39,474,000 34,321,000 35,164,000 34,452,000 28,874,000 31,248,000 50,203,000 39,378,000 44,647,000 44,927,000 43,928,000 38,897,000 40,470,000 36,356,000 33,651,000 40,488,000 49,043,000 30,266,000 23,041,000 38,113,000 36,149,000 30,062,000 23,747,000 22,165,000 120,389,000 43,306,000 39,506,000 50,801,000 
        total assets
      13,046,484,000 13,058,979,000 12,730,474,000 12,560,070,000 12,391,961,000 12,426,579,000 12,384,180,000 12,650,903,000 12,426,913,000 12,381,414,000 10,827,945,000 10,805,680,000 10,860,220,000 10,898,837,000 10,901,815,000 10,840,164,000 10,792,563,000 10,853,903,000 10,640,166,000 11,386,309,000 11,568,311,000 11,132,253,000 11,172,950,000 10,947,189,000 11,017,604,000 10,944,663,000 11,057,030,000 11,181,730,000 11,233,856,000 11,145,717,000 11,118,745,000 11,192,344,000 11,135,972,000 4,488,906,000 4,458,288,000 4,436,602,000 4,147,373,000 4,191,074,000 4,170,887,000 4,098,268,000 4,118,397,000 4,197,170,000 4,128,088,000 4,043,771,000 4,035,551,000 3,913,516,000 3,896,553,000 3,899,903,000 3,861,387,000 3,853,458,000 3,797,974,000 4,025,866,000 4,004,876,000 3,987,071,000 4,095,621,000 4,020,290,000 3,991,172,000 3,973,648,000 3,993,674,000 4,023,126,000 3,933,396,000 3,973,806,000 4,170,983,000 4,256,160,000 4,208,474,000 4,142,375,000 4,221,119,000 4,276,269,000 4,195,712,000           4,348,964,000 1,472,859,000 1,439,617,000 944,571,000 
        liabilities and equity
                                                                                         
        liabilities:
                                                                                         
        notes payable
      4,973,934,000 4,885,954,000 4,769,182,000 4,376,240,000 4,343,700,000 4,365,007,000 4,055,390,000 4,387,181,000 4,001,949,000 3,992,093,000 3,709,074,000 3,711,784,000 3,726,754,000 3,729,404,000 3,737,380,000 3,716,717,000 3,718,944,000 3,749,273,000 3,650,307,000 4,028,767,000 3,445,400,000 3,435,161,000 3,437,959,000 2,994,495,000 3,009,886,000 3,006,478,000 3,008,592,000 3,118,002,000 3,276,888,000 2,971,715,000 2,943,986,000 2,944,995,000 2,749,202,000 1,363,925,000 1,364,200,000 1,674,631,000 1,670,750,000 1,707,478,000 1,808,652,000 1,868,700,000 1,889,727,000 1,946,357,000 1,948,243,000 1,946,063,000 1,855,690,000 1,779,697,000 1,764,437,000 1,767,124,000 1,785,443,000 1,771,891,000 1,756,412,000 1,758,299,000 1,748,358,000 1,942,440,000 1,965,340,000 1,940,145,000 1,922,471,000 2,084,469,000 1,892,919,000 2,015,247,000 1,886,528,000 1,886,380,000 1,880,678,000 1,841,454,000 1,892,679,000 1,837,904,000 1,839,340,000 1,859,995,000 1,798,833,000 1,799,975,000 1,842,030,000 1,810,524,000 1,438,932,000 1,454,386,000 1,456,377,000 1,476,643,000 1,438,848,000 1,451,942,000 1,459,589,000 2,360,546,000 692,658,000 665,517,000 417,286,000 
        unsecured credit facility
      30,000,000 30,000,000 30,000,000 265,000,000 65,000,000 30,000,000 310,000,000 30,000,000 152,000,000 77,000,000  30,000,000                                                                        
        accounts payable and other liabilities
      200,885,000 396,817,000 381,549,000 340,997,000 392,302,000 389,055,000 357,232,000 344,641,000 358,612,000 360,102,000 317,894,000 289,297,000 317,259,000 328,285,000 322,409,000 278,265,000 322,271,000 327,710,000 313,896,000 223,990,000 194,835,000 213,705,000 219,529,000 188,723,000 183,983,000 224,807,000 236,250,000 215,300,000 212,515,000 234,272,000 276,363,000 246,462,000 242,638,000 138,936,000 145,689,000 165,611,000 157,732,000 164,515,000 171,304,000 142,415,000 166,659,000 181,197,000 173,997,000 141,063,000 136,800,000 147,045,000 147,087,000 131,181,000 121,120,000 127,185,000 129,483,000 111,995,000 104,819,000 101,862,000 114,873,000 121,617,000 120,949,000 101,047,000 144,481,000 98,810,000 84,342,000 99,145,000 105,093,000 113,006,000 113,607,000 141,395,000 156,530,000 155,561,000 147,292,000 164,479,000 185,428,000 172,569,000 144,865,000 140,940,000 146,893,000 145,202,000 103,875,000 110,800,000 103,009,000     
        acquired lease intangible liabilities, less accumulated amortization of 249,699 and 243,040 at march 31, 2026 and december 31, 2025, respectively
      352,202,000                                                                                   
        lease liabilities
      241,012,000 243,272,000 243,704,000 243,923,000 244,861,000 245,107,000 243,318,000 245,235,000 246,063,000 242,394,000 243,462,000 212,582,000 213,722,000 215,100,000 214,800,000 215,705,000 215,788,000 218,776,000 218,069,000 221,035,000 221,703,000 222,918,000 223,581,000 223,959,000 225,122,000                                                           
        tenants' security, escrow deposits and prepaid rent
      83,544,000 80,840,000 82,474,000 82,864,000 81,183,000 80,586,000 74,565,000 75,919,000  81,875,000 77,093,000 75,643,000  76,777,000 63,510,000                                                                     
        total liabilities
      5,881,577,000 5,998,923,000 5,873,534,000 5,683,630,000 5,491,654,000 5,482,382,000 5,421,010,000 5,472,884,000 5,234,978,000 5,149,887,000 4,684,159,000 4,666,245,000 4,682,181,000 4,700,097,000 4,695,680,000 4,634,472,000 4,682,631,000 4,710,439,000 4,600,135,000 5,189,107,000 5,293,076,000 4,842,292,000 4,833,103,000 4,594,341,000 4,614,831,000 4,494,495,000 4,504,787,000 4,612,942,000 4,628,475,000 4,412,663,000 4,482,061,000 4,458,309,000 4,371,469,000 1,864,404,000 1,858,004,000 2,234,577,000 2,065,000,000 2,108,454,000 2,262,843,000 2,188,401,000 2,219,518,000 2,260,688,000 2,253,959,000 2,225,369,000 2,194,465,000 2,052,382,000 2,059,458,000 2,063,871,000 2,085,691,000 2,107,547,000 1,983,540,000 2,208,267,000 2,160,262,000 2,117,417,000 2,198,147,000 2,111,596,000 2,060,700,000 2,212,988,000 2,163,407,000 2,157,960,000 2,021,202,000 2,030,412,000 2,269,666,000 2,227,675,000 2,454,116,000 2,380,093,000 2,313,813,000 2,371,115,000 2,277,344,000 2,194,244,000 2,159,333,000 2,032,833,000 1,837,702,000 1,734,572,000 1,794,855,000 1,744,087,000 1,664,898,000 1,739,225,000 1,702,160,000     
        commitments and contingencies
                                                                                    3,557,659,000     
        equity:
                                                                                         
        shareholders' equity:
                                                                                         
        preferred stock 0.01 par value per share...
      225,000,000 225,000,000 225,000,000 225,000,000 225,000,000 225,000,000 225,000,000 225,000,000 225,000,000                                                                           
        common stock 0.01 par value per share...
      1,831,000 1,822,000 1,816,000 1,815,000 1,814,000 1,815,000 1,815,000 1,848,000 1,846,000    1,711,000    1,712,000     1,676,000    1,679,000    1,714,000    1,045,000    972,000    941,000    923,000  923,000 914,000 904,000 904,000 899,000 899,000 899,000                              
        treasury stock
      -32,207,000 -30,641,000 -30,210,000 -29,133,000 -28,045,000 -27,638,000 -27,234,000 -26,321,000 -25,488,000 -25,081,000 -24,676,000 -25,699,000 -24,461,000 -24,061,000 -23,882,000 -23,831,000 -22,758,000 -25,318,000 -25,887,000 -24,597,000 -23,897,000 -23,199,000 -22,858,000 -22,536,000 -21,226,000 -19,834,000 -19,550,000 -19,268,000 -18,756,000 -18,307,000 -18,048,000 -18,105,000 -17,473,000 -17,062,000 -16,882,000 -16,843,000 -18,371,000 -19,658,000 -19,438,000 -19,390,000 -20,638,000 -19,382,000 -19,167,000 -18,952,000 -18,351,000 -16,726,000 -16,540,000 -16,352,000 -15,912,000 -14,924,000 -14,756,000 -14,792,000 -14,222,000 -15,197,000 -15,028,000 -14,985,000 -16,292,000      -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000 -111,414,000     
        additional paid-in-capital
      8,702,768,000 8,654,914,000 8,512,308,000 8,505,489,000 8,503,227,000 8,509,021,000 8,502,753,000 8,703,756,000 8,704,240,000 8,684,012,000 7,859,249,000 7,856,426,000  7,878,993,000 7,874,461,000 7,882,764,000  7,882,613,000 7,796,699,000 7,785,095,000 7,780,336,000  7,650,056,000 7,645,065,000 7,639,353,000                                                           
        accumulated other comprehensive loss
      -2,687,000     -5,374,000          -1,764,000 -10,227,000 -12,618,000 -13,658,000 -25,135,000 -25,531,000 -11,997,000 -15,804,000 -14,086,000 -6,096,000 -927,000    -6,289,000 -14,141,000 -16,435,000 -15,791,000 -18,346,000 -35,739,000 -80,038,000 -72,893,000 -58,693,000 -62,307,000 -48,799,000 -69,277,000 -57,748,000 -33,963,000 -36,412,000 -28,599,000 -17,404,000 -28,430,000 -31,319,000 -51,983,000 -57,715,000 -64,378,000 -66,731,000 -69,083,000 -71,429,000 -73,800,000 -76,162,000 -78,523,000 -80,885,000 -83,243,000 -73,950,000 -55,674,000  -64,969,000 -54,399,000 -68,585,000 -91,465,000       -10,799,000 -13,317,000 -13,334,000 -581,000 -8,552,000 -11,692,000 -12,019,000     
        distributions in excess of net income
      -2,001,870,000 -2,049,762,000 -2,027,254,000 -2,001,878,000 -1,980,076,000 -1,935,358,000 -1,911,741,000 -1,889,037,000 -1,871,603,000 -1,834,298,000 -1,803,406,000 -1,779,043,000 -1,764,977,000 -1,749,013,000 -1,729,645,000 -1,726,556,000 -1,814,814,000 -1,775,668,000 -1,791,773,000 -1,615,077,000 -1,533,182,000 -1,408,062,000 -1,350,331,000 -1,309,278,000 -1,263,011,000 -1,255,465,000 -1,240,331,000 -1,216,018,000 -1,169,828,000 -1,158,170,000 -1,153,153,000 -1,122,666,000 -1,080,882,000 -994,259,000 -997,881,000 -950,941,000 -936,945,000 -936,020,000 -907,962,000 -916,027,000 -902,845,000 -882,372,000 -912,041,000 -916,576,000 -898,787,000 -874,916,000 -878,753,000 -871,266,000 -860,832,000 -834,810,000 -756,114,000 -726,444,000 -690,845,000 -662,735,000 -629,626,000 -596,898,000 -568,526,000 -531,505,000 -457,372,000 -429,798,000 -398,699,000 -373,345,000 -361,530,000 -240,417,000 -186,227,000 -155,057,000 -80,067,000 -83,885,000 -65,049,000 -41,316,000 -45,931,000 -37,036,000 -35,535,000 -41,897,000 -62,324,000 -60,809,000 -52,129,000 -77,422,000 -83,530,000     
        total shareholders' equity
      6,892,835,000 6,797,034,000 6,677,872,000 6,699,578,000 6,724,146,000 6,767,466,000 6,795,728,000 7,019,711,000  7,060,914,000 6,040,213,000 6,057,321,000                                                                        
        noncontrolling interests:
                                                                                         
        exchangeable operating partnership units, aggregate redemption value of 290,397 and 264,950 at march 31, 2026 and december 31, 2025, respectively
      144,705,000                                                                                   
        limited partners' interests in consolidated partnerships
      127,367,000 125,277,000 140,709,000 136,278,000 135,417,000 135,841,000 126,704,000 116,702,000  116,699,000 49,292,000 47,703,000  48,303,000 46,491,000                                           10,829,000                          
        total noncontrolling interests
      272,072,000 263,022,000 179,068,000 176,862,000 176,161,000 176,731,000 167,442,000 158,308,000 159,248,000 170,613,000 103,573,000 82,114,000 81,054,000 82,857,000 81,102,000 73,365,000 72,561,000 72,743,000 72,951,000 75,219,000 75,813,000 76,613,000 77,108,000 52,007,000 52,078,000 52,198,000 40,149,000 40,688,000 41,080,000 41,002,000 41,222,000 41,749,000 33,154,000 33,201,000 33,139,000 35,269,000 35,702,000 28,511,000 29,018,000 29,132,000 29,225,000 29,890,000 28,908,000 32,491,000 32,734,000 17,780,000 12,429,000 12,414,000 12,902,000 15,146,000 15,097,000 15,203,000 12,084,000 61,299,000 61,276,000 61,095,000 61,240,000 59,225,000 59,691,000 59,782,000 66,507,000 68,227,000 68,520,000 66,507,000 65,789,000                   
        total equity
      7,164,907,000 7,060,056,000 6,856,940,000 6,876,440,000 6,900,307,000 6,944,197,000 6,963,170,000 7,178,019,000 7,191,935,000 7,231,527,000 6,143,786,000 6,139,435,000 6,178,039,000 6,198,740,000 6,206,135,000 6,205,692,000 6,109,932,000 6,143,464,000 6,040,031,000 6,197,202,000 6,275,235,000 6,289,961,000 6,339,847,000 6,352,848,000 6,402,773,000 6,450,168,000 6,552,243,000 6,568,788,000 6,605,381,000 6,733,054,000 6,636,684,000 6,734,035,000 6,764,503,000 2,624,502,000 2,600,284,000 2,202,025,000 2,082,373,000 2,082,620,000 1,908,044,000 1,909,867,000 1,898,879,000 1,936,482,000 1,874,129,000 1,818,402,000 1,841,086,000 1,861,134,000 1,837,095,000 1,836,032,000 1,775,696,000 1,745,911,000 1,814,434,000 1,817,599,000 1,844,614,000 1,869,654,000 1,897,474,000 1,908,694,000 1,930,472,000 1,760,660,000 1,830,267,000 1,865,166,000 1,912,194,000 1,943,394,000 1,901,317,000 2,028,485,000 1,754,358,000                   
        total liabilities and equity
      13,046,484,000 13,058,979,000 12,730,474,000 12,560,070,000 12,391,961,000 12,426,579,000 12,384,180,000 12,650,903,000 12,426,913,000 12,381,414,000 10,827,945,000 10,805,680,000 10,860,220,000 10,898,837,000 10,901,815,000 10,840,164,000 10,792,563,000 10,853,903,000 10,640,166,000 11,386,309,000 11,568,311,000 11,132,253,000 11,172,950,000 10,947,189,000 11,017,604,000 10,944,663,000 11,057,030,000 11,181,730,000 11,233,856,000 11,145,717,000 11,118,745,000 11,192,344,000 11,135,972,000 4,488,906,000 4,458,288,000 4,436,602,000 4,147,373,000 4,191,074,000 4,170,887,000 4,098,268,000 4,118,397,000 4,197,170,000 4,128,088,000 4,043,771,000 4,035,551,000 3,913,516,000 3,896,553,000 3,899,903,000 3,861,387,000 3,853,458,000 3,797,974,000 4,025,866,000 4,004,876,000 3,987,071,000 4,095,621,000 4,020,290,000 3,991,172,000 3,973,648,000 3,993,674,000 4,023,126,000 3,933,396,000 3,973,806,000 4,170,983,000 4,256,160,000 4,208,474,000               4,348,964,000 1,472,859,000 1,439,617,000 944,571,000 
        properties held for sale
       53,572,000 15,553,000 16,220,000    33,572,000 18,878,000     2,354,000 2,354,000 2,354,000 25,574,000 22,077,000  27,812,000 27,889,000 45,565,000 35,563,000 15,106,000 15,275,000 60,516,000 51,892,000 102,163,000 8,742,000  27,802,000 19,600,000 19,600,000   29,365,000 26,861,000                                               
        cash, cash equivalents, and restricted cash, including 4,907 and 5,601 of restricted cash at september 30, 2025 and december 31, 2024, respectively
       205,595,000                                                                                  
        deferred leasing costs, less accumulated amortization of 136,359 and 131,080 at september 30, 2025 and december 31, 2024, respectively
       88,838,000                                                                                  
        acquired lease intangible assets, less accumulated amortization of 412,407 and 395,209 at september 30, 2025 and december 31, 2024, respectively
       254,939,000                                                                                  
        acquired lease intangible liabilities, less accumulated amortization of 238,651 and 222,052 at september 30, 2025 and december 31, 2024, respectively
       362,040,000                                                                                  
        accumulated other comprehensive income
       -4,299,000 -3,788,000 -1,715,000   5,135,000 4,465,000 -1,308,000 9,435,000 7,336,000 3,927,000 7,560,000 8,253,000 2,388,000            14,066,000 10,317,000 4,764,000                                 -49,973,000     -26,299,000 -18,762,000 -28,274,000 -18,916,000 -18,030,000 1,577,000            
        exchangeable operating partnership units, aggregate redemption value of 279,804 and 81,076 at september 30, 2025 and december 31, 2024, respectively
       137,745,000                                                                                  
        cash, cash equivalents, and restricted cash, including 4,133 and 5,601 of restricted cash at june 30, 2025 and december 31, 2024, respectively
        154,819,000                                                                                 
        deferred leasing costs, less accumulated amortization of 134,870 and 131,080 at june 30, 2025 and december 31, 2024, respectively
        87,027,000                                                                                 
        acquired lease intangible assets, less accumulated amortization of 410,383 and 395,209 at june 30, 2025 and december 31, 2024, respectively
        218,995,000                                                                                 
        acquired lease intangible liabilities, less accumulated amortization of 233,778 and 222,052 at june 30, 2025 and december 31, 2024, respectively
        366,625,000                                                                                 
        exchangeable operating partnership units, aggregate redemption value of 76,063 and 81,076 at june 30, 2025 and december 31, 2024, respectively
        38,359,000                                                                                 
        cash, cash equivalents, and restricted cash, including 3,444 and 5,601 of restricted cash at march 31, 2025 and december 31, 2024, respectively
         78,537,000                                                                                
        deferred leasing costs, less accumulated amortization of 133,046 and 131,080 at march 31, 2025 and december 31, 2024, respectively
         85,272,000                                                                                
        acquired lease intangible assets, less accumulated amortization of 402,274 and 395,209 at march 31, 2025 and december 31, 2024, respectively
         231,526,000                                                                                
        acquired lease intangible liabilities, less accumulated amortization of 227,051 and 222,052 at march 31, 2025 and december 31, 2024, respectively
         374,606,000                                                                                
        exchangeable operating partnership units, aggregate redemption value of 80,890 and 81,076 at march 31, 2025 and december 31, 2024, respectively
         40,584,000                                                                                
        cash, cash equivalents, and restricted cash, including 5,601 and 6,383 of restricted cash at december 31, 2024 and 2023, respectively
          61,884,000                                                                               
        deferred leasing costs, less accumulated amortization of 131,080 and 124,107 at december 31, 2024 and 2023, respectively
          79,911,000                                                                               
        acquired lease intangible assets, less accumulated amortization of 395,209 and 364,413 at december 31, 2024 and 2023, respectively
          229,983,000                                                                               
        acquired lease intangible liabilities, less accumulated amortization of 222,052 and 211,067 at december 31, 2024 and 2023, respectively
          364,608,000                                                                               
        accumulated other comprehensive gain
          2,226,000                                                                               
        exchangeable operating partnership units, aggregate redemption value of 81,076 and 74,199 at december 31, 2024 and 2023, respectively
          40,744,000                                                                               
        investments in sales-type lease
           16,056,000 15,826,000 11,532,000 8,705,000 8,558,000                                                                          
        cash, cash equivalents, and restricted cash, including 4,822 and 6,383 of restricted cash at september 30, 2024 and december 31, 2023, respectively
           114,831,000                                                                              
        deferred leasing costs, less accumulated amortization of 128,881 and 124,107 at september 30, 2024 and december 31, 2023, respectively
           78,206,000                                                                              
        acquired lease intangible assets, less accumulated amortization of 384,600 and 364,413 at september 30, 2024 and december 31, 2023, respectively
           242,529,000                                                                              
        acquired lease intangible liabilities, less accumulated amortization of 214,684 and 211,067 at september 30, 2024 and december 31, 2023, respectively
           372,627,000                                                                              
        exchangeable operating partnership units, aggregate redemption value of 79,212 and 74,199 at september 30, 2024 and december 31, 2023, respectively
           40,890,000                                                                              
        cash, cash equivalents, and restricted cash, including 6,109 and 6,383 of restricted cash at june 30, 2024 and december 31, 2023, respectively
            79,923,000                                                                             
        deferred leasing costs, less accumulated amortization of 126,867 and 124,107 at june 30, 2024 and december 31, 2023, respectively
            77,836,000                                                                             
        acquired lease intangible assets, less accumulated amortization of 374,411 and 364,413 at june 30, 2024 and december 31, 2023, respectively
            256,639,000                                                                             
        acquired lease intangible liabilities, less accumulated amortization of 208,900 and 211,067 at june 30, 2024 and december 31, 2023, respectively
            380,505,000                                                                             
        exchangeable operating partnership units, aggregate redemption value of 68,390 and 74,199 at june 30, 2024 and december 31, 2023, respectively
            40,738,000                                                                             
        cash, cash equivalents, and restricted cash, including 5,401 and 6,383 of restricted cash at march 31, 2024 and december 31, 2023, respectively
             230,101,000                                                                            
        deferred leasing costs, less accumulated amortization of 125,643 and 124,107 at march 31, 2024 and december 31, 2023, respectively
             77,484,000                                                                            
        acquired lease intangible assets, less accumulated amortization of 364,829 and 364,413 at march 31, 2024 and december 31, 2023, respectively
             266,831,000                                                                            
        acquired lease intangible liabilities, less accumulated amortization of 202,474 and 211,067 at march 31, 2024 and december 31, 2023, respectively
             389,908,000                                                                            
        exchangeable operating partnership units, aggregate redemption value of 66,587 and 74,199 at march 31, 2024 and december 31, 2023, respectively
             41,606,000                                                                            
        cash, cash equivalents, and restricted cash, including 6,383 and 2,310 of restricted cash at december 31, 2023 and 2022, respectively
              91,354,000                                                                           
        deferred leasing costs, less accumulated amortization of 124,107 and 117,137 at december 31, 2023 and 2022, respectively
              73,398,000                                                                           
        acquired lease intangible assets, less accumulated amortization of 364,413 and 338,053 at december 31, 2023 and 2022, respectively
              283,375,000                                                                           
        acquired lease intangible liabilities, less accumulated amortization of 211,067 and 193,315 at december 31, 2023 and 2022, respectively
              398,302,000                                                                           
        tenants’ security, escrow deposits and prepaid rent
              78,052,000    70,242,000   60,895,000 62,352,000 53,269,000 55,904,000 50,251,000 48,573,000 58,865,000 53,227,000 45,527,000 46,923,000 57,750,000 43,988,000 49,124,000 48,428,000  46,351,000 50,126,000 41,136,000  28,239,000 26,974,000 28,217,000  24,726,000                                             
        shareholders’ equity
                                                                                         
        total shareholders’ equity
              7,032,687,000                                                                           
        noncontrolling interests
                                                                                         
        exchangeable operating partnership units, aggregate redemption value of 74,199 and 46,340 at december 31, 2023 and 2022, respectively
              42,195,000                                                                           
        limited partners’ interests in consolidated partnerships
              117,053,000    46,565,000   37,489,000 37,114,000 37,131,000 37,407,000 38,843,000 39,069,000 40,513,000 40,767,000 41,479,000 41,437,000 41,532,000 29,423,000 29,923,000 30,233,000 30,095,000 30,316,000 30,794,000 35,217,000 35,168,000 35,145,000 37,282,000 37,691,000 30,486,000 30,958,000 31,072,000 31,184,000 31,804,000 30,843,000 34,308,000 34,516,000 19,206,000 13,891,000 13,579,000 14,095,000 16,299,000 16,176,000 16,244,000 13,074,000 13,104,000 13,035,000 12,799,000 12,908,000  10,818,000 10,839,000 10,817,000                       
        cash, cash equivalents, and restricted cash, including 6,710 and 2,310 of restricted cash at september 30, 2023 and december 31, 2022, respectively
               81,070,000                                                                          
        deferred leasing costs, less accumulated amortization of 122,530 and 117,137 at september 30, 2023 and december 31, 2022, respectively
               71,551,000                                                                          
        acquired lease intangible assets, less accumulated amortization of 351,118 and 338,053 at september 30, 2023 and december 31, 2022, respectively
               295,347,000                                                                          
        acquired lease intangible liabilities, less accumulated amortization of 205,096 and 193,315 at september 30, 2023 and december 31, 2022, respectively
               396,423,000                                                                          
        series a and series b preferred stock, 0.01 par value per share...
               225,000,000                                                                          
        common stock; 0.01 par value per share...
               1,846,000 1,710,000 1,710,000                                                                        
        exchangeable operating partnership units, aggregate redemption value of 64,005 and 46,340 at september 30, 2023 and december 31, 2022, respectively
               53,914,000                                                                          
        cash, cash equivalents, and restricted cash, including 3,259 and 2,310 of restricted cash at june 30, 2023 and december 31, 2022, respectively
                43,108,000                                                                         
        deferred leasing costs, less accumulated amortization of 120,436 and 117,137 at june 30, 2023 and december 31, 2022, respectively
                69,788,000                                                                         
        acquired lease intangible assets, less accumulated amortization of 345,131 and 338,053 at june 30, 2023 and december 31, 2022, respectively
                178,849,000                                                                         
        acquired lease intangible liabilities, less accumulated amortization of 201,440 and 193,315 at june 30, 2023 and december 31, 2022, respectively
                336,636,000                                                                         
        exchangeable operating partnership units, aggregate redemption value of 66,720 and 46,340 at june 30, 2023 and december 31, 2022, respectively
                54,281,000                                                                         
        cash, cash equivalents, and restricted cash, including 2,955 and 2,310 of restricted cash at march 31, 2023 and december 31, 2022, respectively
                 68,143,000                                                                        
        deferred leasing costs, less accumulated amortization of 118,766 and 117,137 at march 31, 2023 and december 31, 2022, respectively
                 68,567,000                                                                        
        acquired lease intangible assets, less accumulated amortization of 344,460 and 338,053 at march 31, 2023 and december 31, 2022, respectively
                 188,636,000                                                                        
        acquired lease intangible liabilities, less accumulated amortization of 199,840 and 193,315 at march 31, 2023 and december 31, 2022, respectively
                 346,939,000                                                                        
        exchangeable operating partnership units, aggregate redemption value of 45,361 and 46,340 at march 31, 2023 and december 31, 2022, respectively
                 34,411,000                                                                        
        cash, cash equivalents, and restricted cash, including 2,310 and 1,930 of restricted cash at december 31, 2022 and 2021, respectively
                  68,776,000                                                                       
        deferred leasing costs, less accumulated amortization of 117,137 and 117,878 at december 31, 2022 and 2021, respectively
                  68,945,000                                                                       
        acquired lease intangible assets, less accumulated amortization of 338,053 and 312,186 at december 31, 2022 and 2021, respectively
                  197,745,000                                                                       
        acquired lease intangible liabilities, less accumulated amortization of 193,315 and 172,293 at december 31, 2022 and 2021, respectively
                  354,204,000                                                                       
        stockholders’ equity
                                                                                         
        additional paid-in capital
                  7,877,152,000    7,883,458,000     7,654,930,000    7,672,517,000    7,873,104,000                                                      
        total stockholders’ equity
                  6,096,985,000   6,132,327,000 6,037,371,000 6,070,721,000 5,967,080,000 6,121,983,000 6,199,422,000 6,213,348,000 6,262,739,000 6,300,841,000 6,350,695,000 6,397,970,000 6,512,094,000 6,528,100,000 6,564,301,000 6,692,052,000 6,595,462,000 6,692,286,000 6,731,349,000 2,591,301,000 2,567,145,000 2,166,756,000 2,046,671,000 2,054,109,000 1,879,026,000 1,880,735,000 1,869,654,000 1,906,592,000 1,845,221,000 1,785,911,000 1,808,352,000 1,843,354,000 1,824,666,000 1,823,618,000 1,762,794,000 1,730,765,000 1,799,337,000 1,802,396,000 1,832,530,000 1,808,355,000 1,836,198,000 1,847,599,000 1,869,232,000  1,770,576,000 1,805,384,000 1,845,687,000 1,875,167,000 1,832,797,000 1,961,978,000 1,688,569,000 1,696,085,000 1,839,463,000 1,837,417,000  1,870,386,000 1,859,076,000 1,879,009,000 1,860,187,000 1,853,317,000 1,824,713,000 1,829,320,000 1,818,763,000 1,788,825,000 1,776,907,000     
        exchangeable operating partnership units, aggregate redemption value of 46,340 and 56,844 at december 31, 2022 and 2021, respectively
                  34,489,000                                                                       
        cash, cash equivalents, and restricted cash, including 3,752 and 1,930 of restricted cash at september 30, 2022 and december 31, 2021, respectively
                   154,984,000                                                                      
        deferred leasing costs, less accumulated amortization of 122,690 and 117,878 at september 30, 2022 and december 31, 2021, respectively
                   69,091,000                                                                      
        acquired lease intangible assets, less accumulated amortization of 332,866 and 312,186 at september 30, 2022 and december 31, 2021, respectively
                   204,097,000                                                                      
        acquired lease intangible liabilities, less accumulated amortization of 186,515 and 172,293 at september 30, 2022 and december 31, 2021, respectively
                   350,531,000                                                                      
        stockholders' equity:
                                                                                         
        common stock, 0.01 par value per share...
                   1,711,000 1,711,000 1,714,000  1,712,000 1,699,000 1,697,000 1,696,000  1,676,000 1,676,000 1,675,000  1,694,000 1,694,000 1,694,000  1,701,000 1,701,000 1,701,000  1,045,000 995,000 976,000  942,000 943,000 943,000  932,000 923,000 923,000  923,000                                     
        total stockholders' equity
                   6,115,883,000 6,125,033,000                                           1,701,435,000           1,840,345,000               
        exchangeable operating partnership units, aggregate redemption value of 39,926 and 56,844 at september 30, 2022 and december 31, 2021, respectively
                   34,554,000                                                                      
        cash, cash equivalents, and restricted cash, including 3,128 and 1,930 of restricted cash at june 30, 2022 and december 31, 2021, respectively
                    121,190,000                                                                     
        deferred leasing costs, less accumulated amortization of 120,650 and 117,878 at june 30, 2022 and december 31, 2021, respectively
                    65,607,000                                                                     
        acquired lease intangible assets, less accumulated amortization of 325,131 and 312,186 at june 30, 2022 and december 31, 2021, respectively
                    214,264,000                                                                     
        acquired lease intangible liabilities, less accumulated amortization of 180,082 and 172,293 at june 30, 2022 and december 31, 2021, respectively
                    357,581,000                                                                     
        exchangeable operating partnership units, aggregate redemption value of 43,974 and 56,844 at june 30, 2022 and december 31, 2021, respectively
                    34,611,000                                                                     
        cash, cash equivalents, and restricted cash, including 2,749 and 1,930 of restricted cash at march 31, 2022 and december 31, 2021, respectively
                     178,730,000                                                                    
        deferred leasing costs, less accumulated amortization of 118,572 and 117,878 at march 31, 2022 and december 31, 2021, respectively
                     64,954,000                                                                    
        acquired lease intangible assets, less accumulated amortization of 316,632 and 312,186 at march 31, 2022 and december 31, 2021, respectively
                     205,333,000                                                                    
        acquired lease intangible liabilities, less accumulated amortization of 173,281 and 172,293 at march 31, 2022 and december 31, 2021, respectively
                     362,890,000                                                                    
        stockholders’ equity:
                                                                                         
        exchangeable operating partnership units, aggregate redemption value of 54,222 and 56,844 at march 31, 2022 and december 31, 2021, respectively
                     35,876,000                                                                    
        cash, cash equivalents, and restricted cash, including 1,930 and 2,377 of restricted cash at december 31, 2021 and 2020, respectively
                      95,027,000                                                                   
        deferred leasing costs, less accumulated amortization of 117,878 and 113,959 at december 31, 2021 and 2020, respectively
                      65,741,000                                                                   
        acquired lease intangible assets, less accumulated amortization of 312,186 and 284,880 at december 31, 2021 and 2020, respectively
                      212,707,000                                                                   
        unsecured credit facilities
                         264,531,000 969,457,000 484,383,000 449,309,000 683,970,000 673,852,000 708,734,000 708,616,000 713,498,000 563,380,000 623,262,000 578,144,000 563,031,000 658,024,000 278,495,000 263,421,000 309,585,000 164,550,000 165,000,000 215,000,000 120,000,000 105,000,000 75,000,000 75,000,000 85,000,000 145,000,000 75,000,000 100,000,000 125,000,000 145,000,000 170,000,000 65,000,000 305,000,000 275,000,000     10,000,000 110,000,000    227,667,000 227,667,000 367,667,000 297,667,000 297,667,000 334,667,000 309,667,000               
        acquired lease intangible liabilities, less accumulated amortization of 172,293 and 145,966 at december 31, 2021 and 2020, respectively
                      363,276,000                                                                   
        exchangeable operating partnership units, aggregate redemption value of 56,844 and 34,878 at december 31, 2021 and 2020, respectively
                      35,447,000                                                                   
        cash, cash equivalents, and restricted cash, including 3,288 and 2,377 of restricted cash at september 30, 2021 and december 31, 2020, respectively
                       362,685,000                                                                  
        deferred leasing costs, less accumulated amortization of 116,737 and 113,959 at september 30, 2021 and december 31, 2020, respectively
                       68,049,000                                                                  
        acquired lease intangible assets, less accumulated amortization of 305,744 and 284,880 at september 30, 2021 and december 31, 2020, respectively
                       173,926,000                                                                  
        acquired lease intangible liabilities, less accumulated amortization of 166,590 and 145,966 at september 30, 2021 and december 31, 2020, respectively
                       361,411,000                                                                  
        exchangeable operating partnership units, aggregate redemption value of 51,174 and 34,878 at september 30, 2021 and december 31, 2020, respectively
                       35,612,000                                                                  
        cash, cash equivalents, and restricted cash, including 2,580 and 2,377 of restricted cash at june 30, 2021 and december 31, 2020, respectively
                        286,613,000                                                                 
        deferred leasing costs, less accumulated amortization of 115,396 and 113,959 at june 30, 2021 and december 31, 2020, respectively
                        66,604,000                                                                 
        acquired lease intangible assets, less accumulated amortization of 298,377 and 284,880 at june 30, 2021 and december 31, 2020, respectively
                        169,119,000                                                                 
        acquired lease intangible liabilities, less accumulated amortization of 159,554 and 145,966 at june 30, 2021 and december 31, 2020, respectively
                        361,959,000                                                                 
        exchangeable operating partnership units, aggregate redemption value of 48,696 and 34,878 at june 30, 2021 and december 31, 2020, respectively
                        35,544,000                                                                 
        cash, cash equivalents, and restricted cash, including 3,933 and 2,542 of restricted cash at june 30, 2020 and december 31, 2019, respectively
                         587,358,000                                                                
        deferred leasing costs, less accumulated amortization of 112,589 and 108,381 at june 30, 2020 and december 31, 2019, respectively
                         73,340,000                                                                
        acquired lease intangible assets, less accumulated amortization of 276,169 and 259,310 at june 30, 2020 and december 31, 2019, respectively
                         215,376,000                                                                
        acquired lease intangible liabilities, less accumulated amortization of 138,335 and 131,676 at june 30, 2020 and december 31, 2019, respectively
                         400,533,000                                                                
        exchangeable operating partnership units, aggregate redemption value of 35,108 and 47,092 at june 30, 2020 and december 31, 2019, respectively
                         36,376,000                                                                
        cash, cash equivalents and restricted cash, including 3,595 and 2,542 of restricted cash at march 31, 2020 and december 31, 2019, respectively
                          736,845,000                                                               
        deferred leasing costs, less accumulated amortization of 110,158 and 108,381 at march 31, 2020 and december 31, 2019, respectively
                          77,100,000                                                               
        acquired lease intangible assets, less accumulated amortization of 268,063 and 259,310 at march 31, 2020 and december 31, 2019, respectively
                          228,819,000                                                               
        acquired lease intangible liabilities, less accumulated amortization of 144,682 and 131,676 at march 31, 2020 and december 31, 2019, respectively
                          413,108,000                                                               
        exchangeable operating partnership units, aggregate redemption value of 29,401 and 47,092 at march 31, 2020 and december 31, 2019, respectively
                          36,744,000                                                               
        cash, cash equivalents, and restricted cash, including 2,542 and 2,658 of restricted cash at december 31, 2019 and 2018, respectively
                           115,562,000                                                              
        deferred leasing costs, less accumulated amortization of 108,381 and 101,093 at december 31, 2019 and 2018, respectively
                           76,798,000                                                              
        acquired lease intangible assets, less accumulated amortization of 259,310 and 219,689 at december 31, 2019 and 2018, respectively
                           242,822,000                                                              
        acquired lease intangible liabilities, less accumulated amortization of 131,676 and 92,746 at december 31, 2019 and 2018, respectively
                           427,260,000                                                              
        exchangeable operating partnership units, aggregate redemption value of 47,092 and 20,532 at december 31, 2019 and 2018, respectively
                           36,100,000                                                              
        real estate investments
                            9,418,276,000 9,221,776,000 9,269,377,000                                                           
        cash, cash equivalents and restricted cash
                            47,461,000 37,364,000 42,784,000                                                           
        deferred leasing costs, less accumulated amortization of 107,737 and 101,093 at september 30, 2019 and december 31, 2018, respectively
                            79,729,000                                                             
        acquired lease intangible assets, less accumulated amortization of 247,639 and 219,689 at september 30, 2019 and december 31, 2018, respectively
                            264,681,000                                                             
        acquired lease intangible liabilities, less accumulated amortization of 119,539 and 92,746 at september 30, 2019 and december 31, 2018, respectively
                            449,498,000                                                             
        exchangeable operating partnership units, aggregate redemption value of 51,870 and 20,532 at september 30, 2019 and december 31, 2018, respectively
                            36,341,000                                                             
        deferred leasing costs, less accumulated amortization of 104,972 and 101,093 at june 30, 2019 and december 31, 2018, respectively
                             81,183,000                                                            
        acquired lease intangible assets, less accumulated amortization of 237,924 and 219,689 at june 30, 2019 and december 31, 2018, respectively
                             262,553,000                                                            
        acquired lease intangible liabilities, less accumulated amortization of 106,286 and 92,746 at june 30, 2019 and december 31, 2018, respectively
                             457,667,000                                                            
        exchangeable operating partnership units, aggregate redemption value of 23,352 and 20,532 at june 30, 2019 and december 31, 2018, respectively
                             10,528,000                                                            
        deferred leasing costs, less accumulated amortization of 102,141 and 101,093 at march 31, 2019 and december 31, 2018, respectively
                              82,477,000                                                           
        acquired lease intangible assets, less accumulated amortization of 225,693 and 219,689 at march 31, 2019 and december 31, 2018, respectively
                              280,613,000                                                           
        acquired lease intangible liabilities, less accumulated amortization of 99,163 and 92,746 at march 31, 2019 and december 31, 2018, respectively
                              475,065,000                                                           
        exchangeable operating partnership units, aggregate redemption value of 23,615 and 20,532 at march 31, 2019 and december 31, 2018, respectively
                              10,641,000                                                           
        cash and cash equivalents
                               42,532,000 40,365,000 37,151,000 87,904,000 45,370,000 23,543,000 97,266,000 36,855,000 13,256,000 40,902,000 24,939,000 27,137,000 36,856,000 23,880,000 27,114,000 36,489,000 113,776,000 100,708,000 36,736,000 35,159,000 80,684,000 62,702,000 59,143,000 22,402,000 22,349,000 21,350,000 23,030,000 27,115,000 11,402,000 21,195,000 18,408,000 65,764,000 22,460,000 38,838,000 106,433,000 119,538,000 99,477,000 173,798,000 126,792,000 24,669,000 21,533,000 25,777,000 41,604,000 29,212,000 18,668,000 33,571,000 55,095,000 29,164,000 34,046,000 38,360,000 36,594,000 88,056,000 42,458,000 31,232,000     
        restricted cash
                               2,658,000 4,121,000 6,089,000 5,732,000 4,011,000 7,098,000 7,435,000 7,987,000 4,623,000 4,005,000 3,505,000 3,893,000 3,767,000 5,142,000 6,726,000 6,590,000 8,013,000 9,339,000 8,912,000 9,192,000 9,520,000 5,288,000 5,354,000 6,090,000 6,472,000 6,133,000 6,075,000 6,406,000 6,050,000                              
        deferred leasing costs, less accumulated amortization of 101,093 and 93,291 at december 31, 2018 and 2017, respectively
                               84,983,000                                                          
        acquired lease intangible assets, less accumulated amortization of 219,689 and 148,280 at december 31, 2018 and 2017, respectively
                               387,069,000                                                          
        acquired lease intangible liabilities, less accumulated amortization of 92,746 and 56,550 at december 31, 2018 and 2017, respectively
                               496,726,000                                                          
        exchangeable operating partnership units, aggregate redemption value of 20,532 and 24,206 at december 31, 2018 and 2017, respectively
                               10,666,000                                                          
        see accompanying notes to consolidated financial statements.
                                                                                         
        real estate investments at cost:
                                                                                         
        land, building and improvements
                                10,854,283,000 10,752,552,000 10,768,379,000                                                       
        properties in development
                                36,707,000 164,001,000 179,123,000 314,391,000 433,707,000 373,962,000 292,480,000 180,878,000 157,537,000 137,562,000 182,598,000 217,036,000 187,240,000 216,408,000 247,503,000 239,538,000 273,710,000 225,793,000 212,783,000 186,450,000 305,249,000 246,990,000 208,432,000 192,067,000 220,753,000 249,509,000 250,342,000 224,077,000 521,945,000 499,584,000 614,612,000 610,932,000 687,428,000 714,701,000 816,328,000 920,427,000 963,467,000 1,051,514,000 1,077,984,000 1,078,885,000 1,075,796,000 1,008,235,000 928,083,000 905,929,000 895,554,000 929,425,000 747,163,000 615,450,000 682,646,000 562,489,000 487,717,000 413,677,000 410,764,000     
        tenant and other receivables, net of uncollectible reserves of 14,332 and 12,728 at september 30, 2018 and december 31, 2017, respectively
                                160,709,000                                                         
        deferred leasing costs, less accumulated amortization of 98,829 and 93,291 at september 30, 2018 and december 31, 2017, respectively
                                85,292,000                                                         
        acquired lease intangible assets, less accumulated amortization of 206,378 and 148,280 at september 30, 2018 and december 31, 2017, respectively
                                412,653,000                                                         
        acquired lease intangible liabilities, less accumulated amortization of 84,435 and 56,550 at september 30, 2018 and december 31, 2017, respectively
                                507,341,000                                                         
        additional paid in capital
                                7,756,215,000 7,751,375,000 7,746,427,000  7,779,103,000 7,772,791,000 7,768,794,000 3,294,923,000 3,291,602,000 2,888,583,000 2,748,904,000 2,742,508,000 2,542,791,000 2,539,008,000 2,536,471,000 2,540,153,000 2,484,460,000 2,431,928,000 2,428,166,000 2,426,477,000 2,422,466,000 2,416,632,000 2,365,607,000 2,312,310,000 2,308,681,000 2,284,464,000 2,280,781,000 2,281,817,000 2,278,753,000 2,259,745,000 2,256,674,000 2,038,006,000 2,035,372,000 2,033,313,000 2,024,244,000 2,022,670,000 2,094,850,000 2,092,351,000 1,779,039,000 1,778,265,000 1,781,487,000 1,775,722,000 1,769,327,000 1,766,280,000 1,758,700,000 1,750,132,000 1,742,188,000 1,744,201,000 1,736,042,000 1,726,383,000 1,715,120,000 1,713,620,000 1,708,138,000     
        exchangeable operating partnership units, aggregate redemption value of 22,628 and 24,206 at september 30, 2018 and december 31, 2017, respectively
                                10,726,000                                                         
        tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of 14,790 and 12,728 at june 30, 2018 and december 31, 2017, respectively
                                 155,540,000                                                        
        deferred leasing costs, less accumulated amortization of 97,107 and 93,291 at june 30, 2018 and december 31, 2017, respectively
                                 83,686,000                                                        
        acquired lease intangible assets, less accumulated amortization of 188,246 and 148,280 at june 30, 2018 and december 31, 2017, respectively
                                 432,951,000                                                        
        acquired lease intangible liabilities, less accumulated amortization of 75,179 and 56,550 at june 30, 2018 and december 31, 2017, respectively
                                 517,018,000                                                        
        exchangeable operating partnership units, aggregate redemption value of 21,722 and 24,206 at june 30, 2018 and december 31, 2017, respectively
                                 10,765,000                                                        
        tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of 13,945 and 12,728 at march 31, 2018 and december 31, 2017, respectively
                                  159,587,000                                                       
        deferred leasing costs, less accumulated amortization of 96,192 and 93,291 at march 31, 2018 and december 31, 2017, respectively
                                  83,638,000                                                       
        acquired lease intangible assets, less accumulated amortization of 171,114 and 148,280 at march 31, 2018 and december 31, 2017, respectively
                                  455,589,000                                                       
        acquired lease intangible liabilities, less accumulated amortization of 68,123 and 56,550 at march 31, 2018 and december 31, 2017, respectively
                                  527,264,000                                                       
        exchangeable operating partnership units, aggregate redemption value of 20,637 and 24,206 at march 31, 2018 and december 31, 2017, respectively
                                  10,847,000                                                       
        real estate investments at cost
                                                                                         
        land
                                   4,667,744,000 4,578,145,000 4,690,171,000 4,760,963,000 1,660,424,000   1,435,619,000 1,432,468,000 1,431,612,000 1,405,931,000 1,386,126,000 1,380,211,000 1,323,452,000 1,318,518,000 1,315,900,000 1,249,779,000 1,175,815,000 1,193,500,000 1,228,920,000 1,215,659,000 1,212,308,000 1,276,966,000 1,264,492,000 1,273,606,000 1,167,152,000 1,168,160,000 1,094,816,000 1,093,700,000 1,071,961,000 1,058,214,000 1,021,059,000 975,861,000 994,637,000 1,001,137,000 974,244,000 923,062,000 939,851,000 995,976,000 986,700,000 968,859,000 942,792,000 876,241,000 843,384,000 862,851,000 829,285,000 858,210,000 853,078,000 853,275,000 827,058,000     
        buildings and improvements
                                   5,910,686,000 5,834,405,000 5,779,172,000 5,908,653,000 3,092,197,000 3,086,287,000 3,044,793,000 2,904,538,000 2,896,396,000 2,880,141,000 2,817,680,000 2,793,939,000 2,790,137,000 2,703,109,000 2,711,144,000 2,683,333,000 2,590,302,000 2,479,326,000 2,502,979,000 2,515,644,000 2,502,186,000 2,398,114,000 2,614,724,000 2,608,756,000 2,604,229,000 2,462,234,000 2,408,966,000 2,291,514,000 2,284,522,000 2,199,756,000 2,160,802,000 2,082,026,000 2,017,843,000 2,110,795,000 2,099,905,000 2,038,474,000 1,974,093,000 2,023,322,000 2,114,443,000 2,130,320,000 2,090,497,000 2,048,713,000 1,949,142,000 1,923,384,000 1,963,634,000 1,953,135,000 1,981,437,000 1,934,326,000 1,926,297,000 1,921,703,000     
        deferred leasing costs, less accumulated amortization of 93,291 and 83,529 at december 31, 2017 and 2016, respectively
                                   80,044,000                                                      
        acquired lease intangible assets, less accumulated amortization of 148,280 and 56,695 at december 31, 2017 and 2016, respectively
                                   478,826,000                                                      
        acquired lease intangible liabilities, less accumulated amortization of 56,550 and 23,538 at december 31, 2017 and 2016, respectively
                                   537,401,000                                                      
        tenants’ security and escrow deposits and prepaid rent
                                   46,013,000    28,868,000    29,427,000  27,161,000 27,045,000 25,991,000 24,888,000 23,540,000 25,847,000 23,911,000 22,454,000 14,229,000 14,618,000 18,146,000 14,053,000 20,929,000 19,757,000 20,416,000 19,240,000                             
        preferred stock, 0.01 par value per share...
                                     75,000,000 75,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 325,000,000 275,000,000                              
        exchangeable operating partnership units, aggregate redemption value of 24,206 and 10,630 at december 31, 2017 and 2016, respectively
                                   10,907,000                                                      
        tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of 12,279 and 9,021 at september 30, 2017 and december 31, 2016, respectively
                                    143,153,000                                                     
        deferred leasing costs, less accumulated amortization of 91,213 and 83,529 at september 30, 2017 and december 31, 2016, respectively
                                    71,826,000                                                     
        acquired lease intangible assets, less accumulated amortization of 123,662 and 56,695 at september 30, 2017 and december 31, 2016, respectively
                                    508,868,000                                                     
        acquired lease intangible liabilities, less accumulated amortization of 49,968 and 23,538 at september 30, 2017 and december 31, 2016, respectively
                                    637,217,000                                                     
        exchangeable operating partnership units, aggregate redemption value of 21,708 and 10,630 at september 30, 2017 and december 31, 2016, respectively
                                    10,906,000                                                     
        tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of 10,898 and 9,021 at june 30, 2017 and december 31, 2016, respectively
                                     125,372,000                                                    
        deferred leasing costs, less accumulated amortization of 88,612 and 83,529 at june 30, 2017 and december 31, 2016, respectively
                                     70,653,000                                                    
        acquired lease intangible assets, less accumulated amortization of 98,447 and 56,695 at june 30, 2017 and december 31, 2016, respectively
                                     540,119,000                                                    
        trading securities held in trust
                                     29,839,000 29,025,000                                                   
        acquired lease intangible liabilities, less accumulated amortization of 39,696 and 23,538 at june 30, 2017 and december 31, 2016, respectively
                                     653,695,000                                                    
        exchangeable operating partnership units, aggregate redemption value of 21,918 and 10,630 at june 30, 2017 and december 31, 2016, respectively
                                     10,955,000                                                    
        tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of 9,577 and 9,021 at march 31, 2017 and december 31, 2016, respectively
                                      119,843,000                                                   
        deferred leasing costs, less accumulated amortization of 85,971 and 83,529 at march 31, 2017 and december 31, 2016, respectively
                                      68,299,000                                                   
        acquired lease intangible assets, less accumulated amortization of 69,324 and 56,695 at march 31, 2017 and december 31, 2016, respectively
                                      606,707,000                                                   
        acquired lease intangible liabilities, less accumulated amortization of 28,689 and 23,538 at march 31, 2017 and december 31, 2016, respectively
                                      680,469,000                                                   
        exchangeable operating partnership units, aggregate redemption value of 10,235 and 10,630 at march 31, 2017 and december 31, 2016, respectively
                                      -2,063,000                                                   
        assets - sum
                                       4,933,499,000                                                  
        deferred leasing costs, less accumulated amortization of 83,529 and 76,823 at december 31, 2016 and 2015, respectively
                                       69,000,000                                                  
        acquired lease intangible assets, less accumulated amortization of 56,695 and 45,639 at december 31, 2016 and 2015, respectively
                                       118,831,000                                                  
        trading securities held in trust, at fair value
                                       28,588,000 29,280,000 29,939,000 29,615,000 29,093,000 28,291,000 29,530,000 29,595,000 28,134,000 27,365,000 27,604,000 26,976,000 26,681,000 25,421,000 24,457,000 24,495,000 23,429,000 23,208,000 22,455,000 23,411,000 21,713,000 20,683,000 23,285,000 21,661,000                           
        acquired lease intangible liabilities, less accumulated amortization of 23,538 and 17,555 at december 31, 2016 and 2015, respectively
                                       54,180,000                                                  
        exchangeable operating partnership units, aggregate redemption value of 10,630 and 10,502 at december 31, 2016 and 2015, respectively
                                       -1,967,000                                                  
        land, including amounts held for future development
                                        1,654,389,000 1,639,958,000                                                
        accounts receivable
                                        24,816,000 27,765,000 25,702,000 32,292,000 24,642,000 25,506,000 27,293,000 30,999,000 25,719,000 33,510,000 32,781,000 26,319,000 23,379,000 21,824,000 24,589,000 26,601,000 28,220,000 37,681,000 42,338,000 37,733,000 29,243,000 27,301,000 26,597,000 36,600,000 37,012,000 31,878,000 31,232,000 40,871,000 35,931,000                     
        straight-line rent receivable, net of reserve of 3,688 and 1,365 at september 30, 2016 and december 31, 2015, respectively
                                        67,931,000                                                 
        notes receivable
                                        10,480,000 10,480,000 10,487,000 10,480,000 11,314,000 12,281,000 12,169,000 12,132,000 12,132,000 11,917,000 11,938,000 11,960,000 26,128,000 18,502,000 19,727,000 23,751,000 23,777,000 23,865,000 23,883,000 35,784,000 35,931,000 35,931,000 35,931,000 35,931,000 36,814,000 36,814,000 36,814,000 37,753,000 26,341,000 27,988,000 36,928,000 31,438,000 55,264,000 20,298,000 32,413,000 44,543,000 20,337,000 19,961,000 19,979,000 19,988,000 21,916,000 41,156,000 34,284,000 46,473,000 21,895,000     
        deferred leasing costs, less accumulated amortization of 82,277 and 76,823 at september 30, 2016 and december 31, 2015, respectively
                                        68,455,000                                                 
        acquired lease intangible assets, less accumulated amortization of 53,878 and 45,639 at september 30, 2016 and december 31, 2015, respectively
                                        122,738,000                                                 
        acquired lease intangible liabilities, less accumulated accretion of 22,067 and 17,555 at september 30, 2016 and december 31, 2015, respectively
                                        56,455,000                                                 
        exchangeable operating partnership units, aggregate redemption value of 11,947 and 10,502 at september 30, 2016 and december 31, 2015, respectively
                                        -2,006,000                                                 
        straight-line rent receivable, net of reserve of 2,961 and 1,365 at june 30, 2016 and december 31, 2015, respectively
                                         66,291,000                                                
        deferred leasing costs, less accumulated amortization of 80,816 and 76,823 at june 30, 2016 and december 31, 2015, respectively
                                         68,297,000                                                
        acquired lease intangible assets, less accumulated amortization of 50,553 and 45,639 at june 30, 2016 and december 31, 2015, respectively
                                         124,325,000                                                
        acquired lease intangible liabilities, less accumulated accretion of 20,240 and 17,555 at june 30, 2016 and december 31, 2015, respectively
                                         57,776,000                                                
        exchangeable operating partnership units, aggregate redemption value of 12,909 and 10,502 at june 30, 2016 and december 31, 2015, respectively
                                         -2,013,000                                                
        straight-line rent receivable, net of reserve of 1,421 and 1,365 at march 31, 2016 and december 31, 2015, respectively
                                          65,067,000                                               
        deferred leasing costs, less accumulated amortization of 78,852 and 76,823 at march 31, 2016 and december 31, 2015, respectively
                                          69,200,000                                               
        acquired lease intangible assets, less accumulated amortization of 47,470 and 45,639 at march 31, 2016 and december 31, 2015, respectively
                                          112,513,000                                               
        acquired lease intangible liabilities, less accumulated accretion of 18,603 and 17,555 at march 31, 2016 and december 31, 2015, respectively
                                          43,751,000                                               
        exchangeable operating partnership units, aggregate redemption value of 11,540 and 10,502 at march 31, 2016 and december 31, 2015, respectively
                                          -1,989,000                                               
        straight-line rent receivable, net of reserve of 1,365 and 652 at december 31, 2015 and 2014, respectively
                                           63,392,000                                              
        deferred costs, less accumulated amortization of 88,694 and 81,822 at december 31, 2015 and 2014, respectively
                                           79,619,000                                              
        acquired lease intangible assets, less accumulated amortization of 45,639 and 36,112 at december 31, 2015 and 2014, respectively
                                           105,380,000                                              
        acquired lease intangible liabilities, less accumulated accretion of 17,555 and 13,993 at december 31, 2015 and 2014, respectively
                                           42,034,000                                              
        exchangeable operating partnership units, aggregate redemption value of 10,502 and 9,833 at december 31, 2015 and 2014, respectively
                                           -1,975,000                                              
        straight-line rent receivable, net of reserve of 1,176 and 652 at september 30, 2015 and december 31, 2014, respectively
                                            61,435,000                                             
        deferred costs, less accumulated amortization of 85,591 and 81,822 at september 30, 2015 and december 31, 2014, respectively
                                            77,599,000                                             
        acquired lease intangible assets, less accumulated amortization of 43,350 and 36,112 at september 30, 2015 and december 31, 2014, respectively
                                            108,400,000                                             
        acquired lease intangible liabilities, less accumulated accretion of 16,689 and 13,993 at september 30, 2015 and december 31, 2014, respectively
                                            43,161,000                                             
        exchangeable operating partnership units, aggregate redemption value of 9,582 and 9,833 at september 30, 2015 and december 31, 2014, respectively
                                            -1,940,000                                             
        operating properties held for sale
                                             29,017,000 18,219,000  12,203,000    10,607,000 15,961,000           8,483,000   19,647,000 18,441,000 37,329,000 56,913,000 66,447,000 33,538,000 26,164,000   7,904,000 19,623,000 74,695,000 25,608,000 27,366,000 17,424,000  36,567,000 31,210,000     
        straight-line rent receivable, net of reserve of 767 and 652 at june 30, 2015 and december 31, 2014, respectively
                                             59,168,000                                            
        deferred costs, less accumulated amortization of 82,561 and 81,822 at june 30, 2015 and december 31, 2014, respectively
                                             74,978,000                                            
        acquired lease intangible assets, less accumulated amortization of 41,058 and 36,112 at june 30, 2015 and december 31, 2014, respectively
                                             46,737,000                                            
        acquired lease intangible liabilities, less accumulated accretion of 15,718 and 13,993 at june 30, 2015 and december 31, 2014, respectively
                                             30,125,000                                            
        exchangeable operating partnership units, aggregate redemption value of 9,093 and 9,833 at june 30, 2015 and december 31, 2014, respectively
                                             -1,940,000                                            
        straight-line rent receivable, net of reserve of 685 and 652 at march 31, 2015 and december 31, 2014, respectively
                                              57,554,000                                           
        deferred costs, less accumulated amortization of 84,728 and 81,822 at march 31, 2015 and december 31, 2014, respectively
                                              70,018,000                                           
        acquired lease intangible assets, less accumulated amortization of 38,670 and 36,112 at march 31, 2015 and december 31, 2014, respectively
                                              49,363,000                                           
        acquired lease intangible liabilities, less accumulated accretion of 14,930 and 13,993 at march 31, 2015 and december 31, 2014, respectively
                                              31,087,000                                           
        exchangeable operating partnership units, aggregate redemption value of 10,490 and 9,833 at march 31, 2015 and december 31, 2014, respectively
                                              -1,959,000                                           
        straight-line rent receivable, net of reserve of 652 and 547 at december 31, 2014 and 2013, respectively
                                               55,768,000                                          
        deferred costs, less accumulated amortization of 81,822 and 73,231 at december 31, 2014 and 2013, respectively
                                               71,502,000                                          
        acquired lease intangible assets, less accumulated amortization of 36,112 and 25,591 at december 31, 2014 and 2013, respectively
                                               52,365,000                                          
        acquired lease intangible liabilities, less accumulated accretion of 13,993 and 10,102 at december 31, 2014 and 2013, respectively
                                               32,143,000                                          
        exchangeable operating partnership units, aggregate redemption value of 9,833 and 7,676 at december 31, 2014 and 2013, respectively
                                               -1,914,000                                          
        straight-line rent receivable, net of reserve of 509 and 547 at september 30, 2014 and december 31, 2013, respectively
                                                54,947,000                                         
        deferred costs, less accumulated amortization of 79,504 and 73,231 at september 30, 2014 and december 31, 2013, respectively
                                                72,559,000                                         
        acquired lease intangible assets, less accumulated amortization of 35,505 and 25,591 at september 30, 2014 and december 31, 2013, respectively
                                                52,240,000                                         
        acquired lease intangible liabilities, less accumulated accretion of 13,013 and 10,102 at september 30, 2014 and december 31, 2013, respectively
                                                31,831,000                                         
        exchangeable operating partnership units, aggregate redemption value of 8,299 and 7,676 at september 30, 2014 and december 31, 2013, respectively
                                                -1,935,000                                         
        straight-line rent receivable, net of reserve of 716 and 547 at june 30, 2014 and december 31, 2013, respectively
                                                 53,673,000                                        
        deferred costs, less accumulated amortization of 76,838 and 73,231 at june 30, 2014 and december 31, 2013, respectively
                                                 73,659,000                                        
        acquired lease intangible assets, less accumulated amortization of 30,930 and 25,591 at june 30, 2014 and december 31, 2013, respectively
                                                 53,543,000                                        
        acquired lease intangible liabilities, less accumulated accretion of 12,130 and 10,102 at june 30, 2014 and december 31, 2013, respectively
                                                 29,703,000                                        
        exchangeable operating partnership units, aggregate redemption value of 8,872 and 7,676 at june 30, 2014 and december 31, 2013, respectively
                                                 -1,817,000                                        
        straight-line rent receivable, net of reserve of 528 and 547 at march 31, 2014 and december 31, 2013, respectively
                                                  52,205,000                                       
        deferred costs, less accumulated amortization of 75,413 and 73,231 at march 31, 2014 and december 31, 2013, respectively
                                                  70,543,000                                       
        acquired lease intangible assets, less accumulated amortization of 27,842 and 25,591 at march 31, 2014 and december 31, 2013, respectively
                                                  57,028,000                                       
        acquired lease intangible liabilities, less accumulated accretion of 11,158 and 10,102 at march 31, 2014 and december 31, 2013, respectively
                                                  31,128,000                                       
        exchangeable operating partnership units, aggregate redemption value of 8,136 and 7,676 at march 31, 2014 and december 31, 2013, respectively
                                                  -1,782,000                                       
        straight-line rent receivable, net of reserve of 547 and 870 at december 31, 2013 and 2012, respectively
                                                   50,612,000                                      
        deferred costs, less accumulated amortization of 73,231 and 69,224 at december 31, 2013 and 2012, respectively
                                                   69,963,000                                      
        acquired lease intangible assets, less accumulated amortization of 25,591 and 19,148 at december 31, 2013 and 2012, respectively
                                                   44,805,000                                      
        acquired lease intangible liabilities, less accumulated accretion of 10,102 and 6,636 at december 31, 2013 and 2012, respectively
                                                   26,729,000                                      
        exchangeable operating partnership units, aggregate redemption value of 7,676 and 8,348 at december 31, 2013 and 2012, respectively
                                                   -1,426,000                                      
        straight-line rent receivable, net of reserve of 451 and 870 at september 30, 2013 and december 31, 2012, respectively
                                                    50,422,000                                     
        deferred costs, less accumulated amortization of 72,808 and 69,224 at september 30, 2013 and december 31, 2012, respectively
                                                    69,553,000                                     
        acquired lease intangible assets, less accumulated amortization of 23,750 and 19,148 at september 30, 2013 and december 31, 2012, respectively
                                                    39,134,000                                     
        acquired lease intangible liabilities, less accumulated accretion of 9,123 and 6,636 at september 30, 2013 and december 31, 2012, respectively
                                                    25,480,000                                     
        exchangeable operating partnership units, aggregate redemption value of 8,016 and 8,348 at september 30, 2013 and december 31, 2012, respectively
                                                    -1,462,000                                     
        straight-line rent receivable, net of reserve of 566 and 870 at june 30, 2013 and december 31, 2012, respectively
                                                     50,258,000                                    
        deferred costs, less accumulated amortization of 72,758 and 69,224 at june 30, 2013 and december 31, 2012, respectively
                                                     68,141,000                                    
        acquired lease intangible assets, less accumulated amortization of 21,860 and 19,148 at june 30, 2013 and december 31, 2012, respectively
                                                     41,331,000                                    
        acquired lease intangible liabilities, less accumulated accretion of 8,245 and 6,636 at june 30, 2013 and december 31, 2012, respectively
                                                     26,337,000                                    
        exchangeable operating partnership units, aggregate redemption value of 9,002 and 8,348 at june 30, 2013 and december 31, 2012, respectively
                                                     -1,165,000                                    
        straight-line rent receivable, net of reserve of 568 and 870 at march 31, 2013 and december 31, 2012, respectively
                                                      51,403,000                                   
        deferred costs, less accumulated amortization of 71,640 and 69,224 at march 31, 2013 and december 31, 2012, respectively
                                                      68,206,000                                   
        acquired lease intangible assets, less accumulated amortization of 21,104 and 19,148 at march 31, 2013 and december 31, 2012, respectively
                                                      40,391,000                                   
        acquired lease intangible liabilities, less accumulated accretion of 7,393 and 6,636 at march 31, 2013 and december 31, 2012, respectively
                                                      19,510,000                                   
        exchangeable operating partnership units, aggregate redemption value of 9,374 and 8,348 at march 31, 2013 and december 31, 2012, respectively
                                                      -1,193,000                                   
        straight-line rent receivable, net of reserve of 870 and 2,075 at december 31, 2012 and 2011, respectively
                                                       49,990,000                                  
        deferred costs, less accumulated amortization of 69,224 and 71,265 at december 31, 2012 and 2011, respectively
                                                       69,506,000                                  
        acquired lease intangible assets, less accumulated amortization of 19,148 and 15,588 at december 31, 2012 and 2011, respectively
                                                       42,459,000                                  
        acquired lease intangible liabilities, less accumulated accretion of 6,636 and 4,750 at december 31, 2012 and 2011, respectively
                                                       20,325,000                                  
        series d preferred units, aggregate redemption value of 50,000 at december 31, 2011
                                                                                         
        exchangeable operating partnership units, aggregate redemption value of 8,348 and 6,665 at december 31, 2012 and 2011, respectively
                                                       -1,153,000                                  
        straight-line rent receivable, net of reserve of 870 and 2,075 at september 30, 2012 and december 31, 2011, respectively
                                                        48,677,000                                 
        deferred costs, less accumulated amortization of 66,477 and 71,265 at september 30, 2012 and december 31, 2011, respectively
                                                        68,141,000                                 
        acquired lease intangible assets, less accumulated amortization of 17,482 and 15,588 at september 30, 2012 and december 31, 2011, respectively
                                                        35,581,000                                 
        derivative instruments, at fair value
                                                        86,000 73,000 59,000 37,000      28,279,000 34,279,000 28,363,000 39,036,000 27,577,000 61,481,000 83,691,000                  
        acquired lease intangible liabilities, less accumulated accretion of 5,947 and 4,750 at september 30, 2012 and december 31, 2011, respectively
                                                        18,506,000                                 
        exchangeable operating partnership units, aggregate redemption value of 8,633 and 6,665 at september 30, 2012 and december 31, 2011, respectively
                                                        -1,079,000                                 
        straight-line rent receivable, net of reserve of 1,648 and 2,075 at june 30, 2012 and december 31, 2011, respectively
                                                         50,934,000                                
        deferred costs, less accumulated amortization of 73,609 and 71,265 at june 30, 2012 and december 31, 2011, respectively
                                                         71,597,000                                
        acquired lease intangible assets, less accumulated amortization of 17,339 and 15,588 at june 30, 2012 and december 31, 2011, respectively
                                                         26,835,000                                
        acquired lease intangible liabilities, less accumulated accretion of 5,452 and 4,750 at june 30, 2012 and december 31, 2011, respectively
                                                         11,971,000                                
        exchangeable operating partnership units, aggregate redemption value of 8,428 and 6,665 at june 30, 2012 and december 31, 2011, respectively
                                                         -1,041,000                                
        straight-line rent receivable, net of reserve of 1,871 and 2,075 at march 31, 2012 and december 31, 2011, respectively
                                                          49,625,000                               
        deferred costs, less accumulated amortization of 71,385 and 71,265 at march 31, 2012 and december 31, 2011, respectively
                                                          71,094,000                               
        acquired lease intangible assets, less accumulated amortization of 16,705 and 15,588 at march 31, 2012 and december 31, 2011, respectively
                                                          25,937,000                               
        acquired lease intangible liabilities, less accumulated accretion of 5,143 and 4,750 at march 31, 2012 and december 31, 2011, respectively
                                                          12,269,000                               
        exchangeable operating partnership units, aggregate redemption value of 7,880 and 6,665 at march 31, 2012 and december 31, 2011, respectively
                                                          -990,000                               
        straight-line rent receivable, net of reserve of 2,075 and 1,396 at december 31, 2011 and 2010, respectively
                                                           48,132,000                              
        deferred costs, less accumulated amortization of 71,265 and 69,158 at december 31, 2011 and 2010, respectively
                                                           70,204,000                              
        acquired lease intangible assets, less accumulated amortization of 15,588 and 13,996 at december 31, 2011 and 2010, respectively
                                                           27,054,000                              
        unsecured line of credit
                                                           40,000,000 85,000,000 30,000,000              208,000,000 110,000,000 30,000,000 236,000,000 121,000,000 158,000,000 103,000,000 108,000,000 162,000,000 125,000,000     
        acquired lease intangible liabilities, less accumulated accretion of 4,750 and 11,010 at december 31, 2011 and 2010, respectively
                                                           12,662,000                              
        series d preferred units, aggregate redemption value of 50,000 at december 31, 2011 and 2010
                                                           49,158,000                              
        exchangeable operating partnership units, aggregate redemption value of 6,665 and 7,483 at december 31, 2011 and 2010, respectively
                                                           -963,000                              
        straight-line rent receivable, net of allowance of 2,087 and 1,396 at september 30, 2011 and december 31, 2010, respectively
                                                            48,327,000                             
        deferred costs, less accumulated amortization of 68,656 and 69,158 at september 30, 2011 and december 31, 2010, respectively
                                                            70,006,000                             
        acquired lease intangible assets, less accumulated amortization of 14,562 and 13,996 at september 30, 2011 and december 31, 2010, respectively
                                                            26,855,000                             
        acquired lease intangible liabilities, less accumulated accretion of 4,399 and 11,010 at september 30, 2011 and december 31, 2010, respectively
                                                            13,694,000                             
        preferred stock, .01 par value per share...
                                                            275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000 275,000,000     
        common stock .01 par value per share...
                                                            899,000 899,000 899,000 819,000 819,000 819,000 816,000 815,000 860,000 857,000 756,000 756,000 756,000 756,000 755,000 752,000 751,000 750,000 747,000 744,000 743,000 741,000 738,000 733,000 732,000     
        series d preferred units, aggregate redemption value of 50,000 at september 30, 2011 and december 31, 2010
                                                            49,158,000                             
        exchangeable operating partnership units, aggregate redemption value of 6,259 and 7,483 at september 30, 2011 and december 31, 2010, respectively
                                                            -917,000                             
        straight-line rent receivable, net of allowance of 1,598 and 1,396 at june 30, 2011 and december 31, 2010, respectively
                                                             47,768,000                            
        deferred costs, less accumulated amortization of 68,172 and 69,158 at june 30, 2011 and december 31, 2010, respectively
                                                             62,912,000                            
        acquired lease intangible assets, less accumulated amortization of 13,707 and 13,996 at june 30, 2011 and december 31, 2010, respectively
                                                             18,320,000                            
        acquired lease intangible liabilities, less accumulated accretion of 4,434 and 11,010 at june 30, 2011 and december 31, 2010, respectively
                                                             8,682,000                            
        tenants’ security and escrow deposits
                                                             11,152,000 10,876,000 10,790,000 10,604,000 10,565,000 10,623,000 10,628,000 10,823,000 11,097,000 11,324,000 11,571,000 11,869,000 11,927,000  11,436,000 10,898,000 10,643,000 10,561,000 10,517,000 10,839,000 10,684,000 10,206,000 10,276,000 10,116,000     
        series d preferred units, aggregate redemption value of 50,000 at june 30, 2011 and december 31, 2010
                                                             49,158,000                            
        exchangeable operating partnership units, aggregate redemption value of 7,790 and 7,483 at june 30, 2011 and december 31, 2010, respectively
                                                             -862,000                            
        straight-line rent receivable, net of allowance of 1,553 and 1,396 at march 31, 2011 and december 31, 2010, respectively
                                                              46,815,000                           
        deferred costs, less accumulated amortization of 65,362 and 69,158 at march 31, 2011 and december 31, 2010, respectively
                                                              62,635,000                           
        acquired lease intangible assets, less accumulated amortization of 15,057 and 13,996 at march 31, 2011 and december 31, 2010, respectively
                                                              17,401,000                           
        acquired lease intangible liabilities, less accumulated accretion of 11,288 and 11,010 at march 31, 2011 and december 31, 2010, respectively
                                                              6,404,000                           
        series d preferred units, aggregate redemption value of 50,000 at march 31, 2011 and december 31, 2010
                                                              49,158,000                           
        exchangeable operating partnership units, aggregate redemption value of 7,703 and 7,483 at march 31, 2011 and december 31, 2010, respectively
                                                              -826,000                           
        straight-line rent receivable, net of reserve of 1,396 and 1,899 at december 31, 2010 and 2009, respectively
                                                               45,241,000                          
        deferred costs, less accumulated amortization of 69,158 and 58,861 at december 31, 2010 and 2009, respectively
                                                               63,165,000                          
        acquired lease intangible assets, less accumulated amortization of 13,996 and 11,632 at december 31, 2010 and 2009, respectively
                                                               18,219,000                          
        acquired lease intangible liabilities, less accumulated accretion of 11,010 and 9,715 at december 31, 2010 and 2009, respectively
                                                               6,682,000                          
        stockholders' equity
                                                                                         
        series d preferred units, aggregate redemption value of 50,000 at december 31, 2010 and 2009
                                                               49,158,000                          
        exchangeable operating partnership units, aggregate redemption value of 7,483 and 16,415 at december 31, 2010 and 2009, respectively
                                                               -762,000                          
        straight-line rent receivable, net of allowance of 1,896 and 1,899 at september 30, 2010 and december 31, 2009
                                                                43,619,000                         
        deferred costs, less accumulated amortization of 66,096 and 58,861 at september 30, 2010 and december 31, 2009, respectively
                                                                58,243,000                         
        acquired lease intangible assets, less accumulated amortization of 13,320 and 11,632 at september 30, 2010 and december 31, 2009, respectively
                                                                9,722,000                         
        acquired lease intangible liabilities, less accumulated accretion of 10,755 and 9,715 at september 30, 2010 and december 31, 2009, respectively
                                                                5,403,000                         
        series d preferred units, aggregate redemption value of 50,000 at september 30, 2010 and december 31, 2009
                                                                49,158,000                         
        exchangeable operating partnership units, aggregate redemption value of 7,466 and 16,415 at september 30, 2010 and december 31, 2009, respectively
                                                                -285,000                         
        straight-line rent receivable, net of reserve of 1,896 and 1,899 at june 30, 2010 and december 31, 2009
                                                                 41,440,000                        
        deferred costs, less accumulated amortization of 64,438 and 58,861 at june 30, 2010 and december 31, 2009, respectively
                                                                 58,115,000                        
        acquired lease intangible assets, less accumulated amortization of 12,749 and 11,632 at june 30, 2010 and december 31, 2009, respectively
                                                                 8,784,000                        
        acquired lease intangible liabilities, less accumulated accretion of 10,537 and 9,715 at june 30, 2010 and december 31, 2009, respectively
                                                                 5,059,000                        
        series d preferred units, aggregate redemption value of 50,000 at june 30, 2010 and december 31, 2009
                                                                 49,158,000                        
        exchangeable operating partnership units, aggregate redemption value of 6,507 and 16,415 at june 30, 2010 and december 31, 2009, respectively
                                                                 -215,000                        
        straight-line rent receivable, net of reserve of 1,899 at march 31, 2010 and december 31, 2009
                                                                  40,078,000                       
        deferred costs, less accumulated amortization of 61,290 and 58,861 at march 31, 2010 and december 31, 2009, respectively
                                                                  57,985,000                       
        acquired lease intangible assets, less accumulated amortization of 12,173 and 11,632 at march 31, 2010 and december 31, 2009, respectively
                                                                  9,361,000                       
        acquired lease intangible liabilities, less accumulated accretion of 10,166 and 9,715 at march 31, 2010 and december 31, 2009, respectively
                                                                  5,430,000                       
        series d preferred units, aggregate redemption value of 50,000 at march 31, 2010 and december 31, 2009
                                                                  49,158,000                       
        exchangeable operating partnership units, aggregate redemption value of 16,636 and 16,415 at march 31, 2010 and december 31, 2009, respectively
                                                                  6,532,000                       
        straight line rent receivable, net of reserve of 1,899 at december 31, 2009
                                                                   39,292,000                      
        other receivables
                                                                      19,700,000 19,700,000                  
        deferred costs, less accumulated amortization of 58,861 and 51,549 at december 31, 2009 and 2008, respectively
                                                                   58,376,000                      
        acquired lease intangible assets, less accumulated amortization of 11,632 and 11,204 at december 31, 2009 and 2008, respectively
                                                                   10,007,000                      
        acquired lease intangible liabilities, less accumulated accretion of 9,715 and 8,829 at december 31, 2009 and 2008, respectively
                                                                   5,896,000                      
        series d preferred units, aggregate redemption value of 50,000 at december 31, 2009 and 2008
                                                                   49,158,000                      
        exchangeable operating partnership units, aggregate redemption value of 16,415 and 21,865 at december 31, 2009 and 2008, respectively
                                                                   7,321,000                      
        limited partners’ interest in consolidated partnerships
                                                                   11,748,000 11,804,000 9,051,000 8,075,000 7,980,000 8,221,000 8,124,000  18,392,000 14,544,000 14,764,000 14,613,000 17,797,000 17,834,000 16,419,000 11,978,000 11,088,000 1,454,000     
        straight line rent receivable, net of reserve of 1,683 at september 30, 2009
                                                                    39,518,000                     
        deferred costs, less accumulated amortization of 57,722 and 51,549 at september 30, 2009 and december 31, 2008, respectively
                                                                    56,803,000                     
        acquired lease intangible assets, less accumulated amortization of 11,635 and 11,204 at september 30, 2009 and december 31, 2008, respectively
                                                                    10,661,000                     
        acquired lease intangible liabilities, less accumulated accretion of 9,242 and 8,829 at september 30, 2009 and december 31, 2008, respectively
                                                                    6,369,000                     
        preferred units, aggregate redemption value of 50,000 at september 30, 2009 and december 31, 2008
                                                                    49,158,000                     
        exchangeable operating partnership units, aggregate redemption value of 17,347 and 21,865 at september 30, 2009 and december 31, 2008, respectively
                                                                    7,558,000                     
        tenant receivables, net of allowance for doubtful accounts of 5,461 and 1,593 at june 30, 2009 and december 31, 2008, respectively
                                                                     69,076,000                    
        deferred costs, less accumulated amortization of 55,115 and 51,549 at june 30, 2009 and december 31, 2008, respectively
                                                                     56,201,000                    
        acquired lease intangible assets, less accumulated amortization of 11,136 and 11,204 at june 30, 2009 and december 31, 2008, respectively
                                                                     11,408,000                    
        acquired lease intangible liabilities, less accumulated accretion of 8,807 and 8,829 at june 30, 2009 and december 31, 2008, respectively
                                                                     6,874,000                    
        preferred units, aggregate redemption value of 50,000 at june 30, 2009 and december 31, 2008
                                                                     49,158,000                    
        exchangeable operating partnership units, aggregate redemption value of 16,345 and 21,865 at june 30, 2009 and december 31, 2008, respectively
                                                                     8,298,000                    
        tenant receivables, net of allowance for uncollectible accounts of 1,627 and 1,593 at march 31, 2009 and december 31, 2008, respectively
                                                                      76,529,000                   
        deferred costs, less accumulated amortization of 54,424 and 51,549 at march 31, 2009 and december 31, 2008, respectively
                                                                      55,419,000                   
        acquired lease intangible assets, less accumulated amortization of 10,515 and 11,204 at march 31, 2009 and december 31, 2008, respectively
                                                                      12,111,000                   
        acquired lease intangible liabilities, less accumulated accretion of 8,523 and 8,829 at march 31, 2009 and december 31, 2008, respectively
                                                                      7,358,000                   
        preferred units, aggregate redemption value of 50,000 at march 31, 2009 and december 31, 2008
                                                                      49,158,000                   
        exchangeable operating partnership units, aggregate redemption value of 12,440 and 21,865 at march 31, 2009 and december 31, 2008, respectively
                                                                      8,556,000                   
        tenant receivables, net of allowance for uncollectible accounts of 1,593 and 2,482 at december 31, 2008 and 2007, respectively
                                                                       84,096,000                  
        deferred costs, less accumulated amortization of 51,549 and 43,470 at december 31, 2008 and 2007, respectively
                                                                       57,477,000                  
        acquired lease intangible assets, less accumulated amortization of 11,204
                                                                                         
        and 7,362 at december 31, 2008 and 2007, respectively
                                                                       12,903,000                  
        liabilities, minority interests, and stockholders’ equity
                                                                                         
        acquired lease intangible liabilities, less accumulated accretion of 8,829 and 6,371 at december 31, 2008 and 2007, respectively
                                                                       7,865,000                  
        minority interests:
                                                                                         
        preferred units
                                                                       49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000 49,158,000     
        exchangeable operating partnership units, aggregate redemption value of 21,865 and 30,543 at december 31, 2008 and 2007, respectively
                                                                       9,059,000                  
        total minority interests
                                                                       66,197,000                  
        total liabilities, minority interests, and stockholders’ equity
                                                                       4,142,375,000                  
        tenant receivables, net of allowance for uncollectible accounts of 1,692 and 2,482 at september 30, 2008 and december 31, 2007, respectively
                                                                        73,936,000                 
        deferred costs, less accumulated amortization of 49,165 and 43,470 at september 30, 2008 and december 31, 2007, respectively
                                                                        58,289,000                 
        acquired lease intangible assets, less accumulated amortization of 10,891 and 7,362 at september 30, 2008 and december 31, 2007, respectively
                                                                        13,698,000                 
        liabilities and stockholders’ equity
                                                                                         
        acquired lease intangible liabilities, less accumulated accretion of 8,319 and 6,371 at september 30, 2008 and december 31, 2007, respectively
                                                                        8,407,000                 
        exchangeable operating partnership units, aggregate redemption value of 31,225 and 30,543 at september 30, 2008 and december 31, 2007, respectively
                                                                        10,464,000                 
        total minority interest
                                                                        67,843,000 67,737,000 78,023,000 78,382,000 74,676,000 77,970,000 79,045,000 83,896,000 84,270,000 86,203,000 86,879,000 88,165,000 78,592,000     
        tenant receivables, net of allowance for uncollectible accounts of 2,077 and 2,482 at june 30, 2008 and december 31, 2007, respectively
                                                                         71,663,000                
        deferred costs, less accumulated amortization of 48,614 and 43,470 at june 30, 2008 and december 31, 2007, respectively
                                                                         58,062,000                
        acquired lease intangible assets, less accumulated amortization of 9,594 and 7,362 at june 30, 2008 and december 31, 2007, respectively
                                                                         14,995,000                
        acquired lease intangible liabilities, less accumulated accretion of 7,760 and 6,371 at june 30, 2008 and december 31, 2007, respectively
                                                                         8,965,000                
        exchangeable operating partnership units, aggregate redemption value of 27,681 and 30,543 at june 30, 2008 and december 31, 2007, respectively
                                                                         10,455,000                
        tenant receivables, net of allowance for uncollectible accounts of 2,547 and 2,482 at march 31, 2008 and december 31, 2007, respectively
                                                                          67,461,000               
        deferred costs, less accumulated amortization of 46,265 and 43,470 at march 31, 2008 and december 31, 2007, respectively
                                                                          56,675,000               
        acquired lease intangible assets, less accumulated amortization of 8,373 and 7,362 at march 31, 2008 and december 31, 2007, respectively
                                                                          16,217,000               
        liabilities and stockholders' equity
                                                                                         
        acquired lease intangible liabilities, less accumulated accretion of 6,949 and 6,371 at march 31, 2008 and december 31, 2007, respectively
                                                                          9,776,000               
        tenants' security and escrow deposits
                                                                          11,776,000               
        exchangeable operating partnership units, aggregate redemption value of 30,321 and 30,543 at march 31, 2008 and december 31, 2007, respectively
                                                                          10,531,000               
        limited partners' interest in consolidated partnerships
                                                                          18,334,000               
        tenant receivables, net of allowance for uncollectible accounts of 2,482 and 3,532 at december 31, 2007 and 2006, respectively
                                                                           75,441,000              
        deferred costs, less accumulated amortization of 43,470 and 36,227 at december 31, 2007 and 2006, respectively
                                                                           52,784,000              
        acquired lease intangible assets, less accumulated amortization of 14,914 and 10,511 at december 31, 2007 and 2006, respectively
                                                                           17,228,000              
        acquired lease intangible liabilities, less accumulated accretion of 6,371 and 4,331 at december 31, 2007 and 2006, respectively
                                                                           10,354,000              
        exchangeable operating partnership units, aggregate redemption value of 30,543 at december 31, 2007
                                                                           10,832,000              
        revenues:
                                                                                         
        minimum rent
                                                                           320,323,000 81,033,000 77,960,000 77,456,000 295,391,000 75,783,000 75,850,000 74,214,000 283,626,000 73,181,000     
        percentage rent
                                                                           4,661,000 889,000 342,000 735,000 4,428,000 1,002,000 527,000 437,000 4,353,000 855,000     
        recoveries from tenants
                                                                           93,460,000 24,269,000 22,962,000 22,143,000 86,134,000 22,942,000 20,645,000 21,403,000 80,948,000 20,217,000     
        management, acquisition and other fees
                                                                           33,064,000 10,789,000 7,496,000 6,381,000 31,805,000 5,327,000 12,141,000 7,260,000 28,019,000 3,326,000     
        total revenues
                                                                           451,508,000 116,980,000 108,760,000 106,715,000 420,338,000 105,632,000 108,825,000 104,069,000 394,038,000 93,626,000     
        operating expenses:
                                                                                         
        depreciation and amortization
                                                                           93,257,000 24,364,000 21,988,000 21,518,000 84,694,000 21,989,000 21,667,000 21,147,000 80,653,000 20,438,000     
        operating and maintenance
                                                                           56,930,000 13,855,000 13,363,000 13,106,000 51,580,000 13,022,000 12,641,000 12,242,000 51,709,000 13,334,000     
        general and administrative
                                                                           50,580,000 12,159,000 12,907,000 12,297,000 45,495,000 10,765,000 10,830,000 10,803,000 37,815,000 9,148,000     
        real estate taxes
                                                                           45,916,000 11,608,000 11,546,000 11,374,000 42,825,000 10,653,000 11,376,000 10,853,000 40,582,000 10,184,000     
        other incomes
                                                                           10,081,000 1,625,000 1,261,000 460,000 15,927,000 -825,000 1,733,000 3,658,000 2,758,000 204,000     
        total operating expenses
                                                                           256,764,000 63,611,000 61,065,000 58,755,000 240,521,000 55,604,000 58,247,000 58,703,000 213,517,000 53,308,000     
        other income:
                                                                                         
        interest expense, net of interest income of 3,079, 4,232 and 2,361 in 2007, 2006 and 2005, respectively
                                                                           82,494,000              
        gain on sale of operating properties and properties in development
                                                                           -52,215,000 -5,492,000 -3,449,000 -25,645,000 -65,600,000 -15,414,000 -9,593,000 -15,680,000 -18,970,000 -3,750,000     
        total other income
                                                                           30,279,000 15,023,000 16,862,000 -6,256,000 14,090,000 4,707,000 10,524,000 3,784,000 69,004,000 19,206,000     
        income before minority interests and equity in income of investments in real estate partnerships
                                                                           164,465,000 38,346,000 30,833,000 54,216,000           
        minority interest of preferred units
                                                                           -3,725,000 -931,000 -931,000 -931,000 -3,725,000 -931,000 -931,000 -931,000 -8,105,000 -2,949,000     
        minority interest of exchangeable operating partnership units
                                                                           -1,424,000 -276,000 -265,000 -540,000 -1,994,000 -459,000 -457,000 -658,000 -2,083,000 -333,000     
        minority interest of limited partners
                                                                           -990,000 -241,000 -238,000 -278,000 -4,863,000 -16,000 -4,264,000 -511,000 -263,000 -45,000     
        equity in income of investments in real estate partnerships
                                                                           18,093,000 1,677,000 780,000 3,788,000 2,580,000 578,000 -338,000 755,000 -2,908,000 -3,953,000     
        income from continuing operations
                                                                           176,419,000 38,575,000 30,179,000 56,255,000 155,145,000 43,915,000 34,402,000 39,482,000 101,066,000 17,785,000     
        discontinued operations
                                                                           390 50 280 10 930 10 40 460 960 220     
        operating income from discontinued operations
                                                                           1,947,000 184,000 396,000 733,000 4,999,000 369,000 -450,000 952,000 8,341,000 712,000     
        income from discontinued operations
                                                                           27,232,000 3,324,000 19,105,000 733,000 63,366,000 396,000 2,645,000 31,293,000 61,581,000 14,278,000     
        net income
                                                                           203,651,000 41,899,000 49,284,000 56,988,000 218,511,000 44,311,000 37,047,000 70,775,000 162,647,000 32,063,000     
        preferred stock dividends
                                                                           -19,675,000 -4,919,000 -4,919,000 -4,919,000 -19,675,000 -4,919,000 -4,919,000 -4,919,000 -16,744,000 -4,500,000     
        net income for common stockholders
                                                                           183,976,000 36,980,000 44,365,000 52,069,000 198,836,000 39,392,000 32,128,000 65,856,000 145,903,000 27,563,000     
        income per common share—basic
                                                                                         
        continuing operations
                                                                           2,260 480 360 740 1,980 560 430 510 1,290 200     
        net income for common stockholders per share
                                                                           2,650 530 640 750 2,910 570 470 970 2,250 420     
        income per common share—diluted
                                                                                         
        tenant receivables, net of allowance for uncollectible accounts of 3,117 and 3,961 at september 30, 2007 and december 31, 2006, respectively
                                                                            65,634,000             
        deferred costs, less accumulated amortization of 41,433 and 36,227 at september 30, 2007 and december 31, 2006, respectively
                                                                            51,533,000             
        acquired lease intangible assets, less accumulated amortization of 13,677 and 10,511 at september 30, 2007 and december 31, 2006, respectively
                                                                            18,466,000             
        acquired lease intangible liabilities
                                                                            10,977,000 9,097,000 7,344,000 7,729,000 8,156,000 8,558,000 3,969,000 4,207,000 4,446,000 61,002,000    
        exchangeable operating partnership units
                                                                            10,974,000 14,048,000 15,274,000 16,941,000 17,278,000 20,626,000 25,743,000 27,919,000 27,980,000     
        interest expense, net of interest income of 840 and 819 in 2007 and 2006, respectively
                                                                            20,515,000             
        discontinued operations, net:
                                                                                         
        income per common share – basic:
                                                                                         
        income per common share – diluted:
                                                                                         
        tenant receivables, net of allowance for uncollectible accounts of 3,387 and 3,961 at june 30, 2007 and december 31, 2006, respectively
                                                                             59,131,000            
        deferred costs, less accumulated amortization of 39,631 and 36,227 at june 30, 2007 and december 31, 2006, respectively
                                                                             48,006,000            
        acquired lease intangible assets, less accumulated amortization of 12,044 and 10,511 at june 30, 2007 and december 31, 2006, respectively
                                                                             14,218,000            
        interest expense, net of interest income of 811 and 937 in 2007 and 2006, respectively
                                                                             20,311,000            
        income per common share—basic:
                                                                                         
        income per common share—diluted:
                                                                                         
        tenant receivables, net of allowance for uncollectible accounts of 3,871 and 3,961 at march 31, 2007 and december 31, 2006, respectively
                                                                              59,631,000           
        deferred costs, less accumulated amortization of 38,006 and 36,227 at march 31, 2007 and december 31, 2006, respectively
                                                                              43,880,000           
        acquired lease intangible assets, less accumulated amortization of 11,257 and 10,511 at march 31, 2007 and december 31, 2006, respectively
                                                                              11,569,000           
        interest expense, net of interest income of 719 and 1,591 in 2007 and 2006, respectively
                                                                              19,389,000           
        tenant receivables, net of allowance for uncollectible accounts of 3,532 and 3,849 at december 31, 2006 and 2005, respectively
                                                                               67,162,000          
        deferred costs, less accumulated amortization of 36,227 and 31,846 at december 31, 2006 and 2005, respectively
                                                                               40,989,000          
        acquired lease intangible assets, less accumulated amortization of 10,511 and 6,593 at december 31, 2006 and 2005, respectively
                                                                               12,315,000          
        other income
                                                                                         
        interest expense, net of interest income of 4,312, 2,361 and 3,125 in 2006, 2005 and 2004, respectively
                                                                               79,690,000          
        benefit from loss on operating properties
                                                                                   550,000      
        income before minority interests
                                                                               165,727,000 45,321,000 40,054,000 41,582,000 111,517,000 21,112,000     
        income per common share - basic
                                                                                         
        income per common share - diluted
                                                                                         
        tenant receivables, net of allowance for uncollectible accounts of 3,916 and 3,849 at september 30, 2006 and december 31, 2005, respectively
                                                                                54,727,000         
        deferred costs, less accumulated amortization of 37,938 and 31,846 at september 30, 2006 and december 31, 2005, respectively
                                                                                40,217,000         
        acquired lease intangible assets, less accumulated amortization of 9,597 and 6,593 at september 30, 2006 and december 31, 2005, respectively
                                                                                13,229,000         
        notes payable for properties held for sale
                                                                                14,590,000         
        interest expense, net of interest income of 864 and 627 in 2006 and 2005, respectively
                                                                                20,121,000         
        income per common share - basic:
                                                                                         
        income per common share - diluted:
                                                                                         
        tenant receivables, net of allowance for uncollectible accounts of 3,995 and 3,849 at june 30, 2006 and december 31, 2005, respectively
                                                                                 58,320,000        
        deferred costs, less accumulated amortization of 35,820 and 31,846 at june 30, 2006 and december 31, 2005, respectively
                                                                                 41,397,000        
        acquired lease intangible assets, less accumulated amortization of 8,473 and 6,593 at june 30, 2006 and december 31, 2005, respectively
                                                                                 14,352,000        
        interest expense, net of interest income of 959 and 558 in 2006 and 2005, respectively
                                                                                 20,117,000        
        tenant receivables, net of allowance for uncollectible accounts of 3,932 and 3,849 at march 31, 2006 and december 31, 2005, respectively
                                                                                  52,034,000       
        deferred costs, less accumulated amortization of 33,497 and 31,846 at march 31, 2006 and december 31, 2005, respectively
                                                                                  41,811,000       
        acquired lease intangible assets, less accumulated amortization of 7,459 and 6,593 at march 31, 2006 and december 31, 2005, respectively
                                                                                  9,315,000       
        interest expense, net of interest income of 1,591 and 486 in 2006 and 2005, respectively
                                                                                  19,464,000       
        tenant receivables, net of allowance for uncollectible accounts of 3,849 and 3,393 at december 31, 2005 and 2004, respectively
                                                                                   56,878,000      
        deferred costs, less accumulated amortization of 31,846 and 25,735 at december 31, 2005 and 2004, respectively
                                                                                   41,657,000      
        acquired lease intangible assets, less accumulated amortization of 6,593 and 2,602 at december 31, 2005 and 2004, respectively
                                                                                   10,182,000      
        restricted stock deferred compensation
                                                                                         
        interest expense, net of interest income of 2,361, 3,125 and 2,357 in 2005, 2004 and 2003, respectively
                                                                                   87,424,000      
        tenant receivables, net of allowance for uncollectible accounts of 3,823 and 3,393 at september 30, 2005 and december 31, 2004, respectively
                                                                                    57,819,000     
        deferred costs, less accumulated amortization of 30,289 and 25,735 at september 30, 2005 and december 31, 2004, respectively
                                                                                    42,207,000     
        acquired lease intangible assets
                                                                                    11,295,000 269,971,000    
        interest expense, net of interest income of 627 and 886 in 2005 and 2004, respectively
                                                                                    22,956,000     
        balance sheet:
                                                                                         
        investment in real estate
                                                                                     3,958,604,000 1,352,587,000 1,325,850,000 844,786,000 
        other liabilities
                                                                                     67,299,000 28,616,000 24,471,000 17,101,000 
        partners’ equity
                                                                                     1,860,117,000 751,585,000 749,629,000 510,184,000 
        acquired lease intangibles
                                                                                      76,966,000 74,261,000 48,984,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-09-30 2024-06-30 2024-03-31 2023-06-30 2022-09-30 2007-09-30 2007-06-30 2006-06-30 2006-03-31 2005-09-30 2005-03-31 2004-09-30 2004-06-30 
                         
          cash flows from operating activities:
                         
          net income
        132,798,000 112,617,000 108,349,000 111,853,000 321,163,000 217,587,000 112,658,000 186,660,000 391,650,000 148,171,000 106,272,000 107,821,000 70,775,000 114,291,000 38,348,000 87,020,000 49,274,000 
          adjustments to reconcile net income to net cash from operating activities:
                         
          depreciation and amortization
        106,422,000 102,799,000 99,535,000 96,774,000 299,508,000 198,553,000 97,585,000 165,868,000 237,462,000 67,916,000 43,542,000 42,898,000 20,908,000 62,899,000 22,266,000 60,772,000 40,266,000 
          amortization of deferred financing costs and debt premiums
        3,979,000 4,040,000 3,588,000 3,334,000 9,754,000             
          amortization of above and below market lease intangibles
        -5,051,000 -5,248,000 -5,199,000 -6,215,000 -17,383,000             
          stock-based compensation, net of capitalization
        5,279,000 4,953,000 4,898,000 4,966,000 18,829,000 12,539,000 6,294,000 8,854,000 12,592,000         
          equity in income of investments in real estate partnerships
        -22,380,000 -15,124,000 -13,759,000 -14,495,000 -37,763,000 -24,275,000 -11,961,000 -23,785,000 -47,855,000 -6,245,000 -4,569,000 -417,000 -755,000 616,000 -2,391,000 -6,888,000 -4,689,000 
          gain on sale of real estate, net of tax
        -7,194,000   -101,000 -33,844,000 -22,484,000 -11,403,000 -331,000 -106,459,000         
          distribution of earnings from investments in real estate partnerships
        16,149,000 13,197,000 18,426,000 16,076,000 49,987,000 32,440,000 16,960,000 31,869,000 45,238,000         
          deferred compensation expense
        766,000 2,213,000 268,000 -521,000 3,615,000 2,695,000 2,089,000 2,940,000 -8,016,000         
          realized and unrealized loss on investments
        -682,000   686,000    -3,376,000 9,253,000         
          changes in assets and liabilities:
                         
          tenant and other receivables
        5,646,000 -526,000 -10,721,000 9,051,000 -8,736,000 -3,565,000 1,220,000 -14,549,000 -18,544,000         
          deferred leasing costs
        -5,299,000 -4,974,000 -7,054,000 -1,748,000 -7,643,000 -6,311,000 -3,714,000 -3,591,000 -7,022,000 -6,608,000 -4,217,000 -3,935,000 -1,935,000 -5,119,000 -1,668,000 -4,683,000 -3,665,000 
          other assets
        -25,405,000 1,881,000 1,053,000 -16,176,000 -10,738,000 -13,793,000 -15,724,000 -17,951,000 -4,312,000 -20,950,000 -12,285,000 -3,457,000 -4,214,000 -11,248,000 -5,971,000 647,000 2,607,000 
          accounts payable and other liabilities
        -45,946,000 11,519,000 44,199,000 -43,735,000 13,881,000 -9,776,000 -19,410,000 6,091,000 21,656,000 5,620,000 4,430,000 -9,825,000 -29,734,000 -8,610,000 -35,399,000 1,708,000 5,714,000 
          tenants' security, escrow deposits and prepaid rent
        -6,353,000 -3,264,000 -318,000 1,282,000 2,442,000 -3,602,000 -2,133,000 6,837,000 13,927,000         
          net cash from operating activities
        152,729,000 218,665,000 244,048,000 161,031,000 598,813,000 371,214,000 167,758,000 334,677,000 528,242,000 176,622,000 121,143,000 108,777,000 29,748,000 144,566,000 19,970,000 149,713,000 111,907,000 
          capital expenditures
          free cash flows
        152,729,000 218,665,000 244,048,000 161,031,000 598,813,000 371,214,000 167,758,000 334,677,000 528,242,000 176,622,000 121,143,000 108,777,000 29,748,000 144,566,000 19,970,000 149,713,000 111,907,000 
          cash flows from investing activities:
                         
          acquisition of operating real estate, net of cash acquired of 787 in 2025
        -21,478,000                 
          real estate development and capital improvements
        -105,071,000 -102,625,000 -103,271,000 -101,386,000 -235,284,000 -141,775,000 -60,850,000 -100,114,000 -143,724,000         
          proceeds from sale of real estate
        11,830,000 43,919,000   103,626,000 92,159,000 30,033,000  137,280,000         
          proceeds from property insurance casualty claims
        3,281,000    5,257,000 4,638,000 4,110,000           
          collection of notes receivable
        1,069,000 299,000 60,000 120,000 3,052,000 3,004,000 1,561,000           
          investments in real estate partnerships
        -22,839,000 -6,182,000 -5,987,000 -230,000 -25,771,000 -8,582,000 -4,156,000 -3,109,000 -13,573,000 -34,476,000 -9,039,000 -5,564,000 -4,791,000 -405,693,000 -11,166,000 -18,621,000 -1,218,000 
          return of capital from investments in real estate partnerships
        34,679,000    12,859,000 10,038,000 3,152,000 3,644,000 48,473,000         
          dividends on investment securities
        1,555,000 151,000 93,000 988,000 296,000 263,000 122,000 420,000 336,000         
          purchase of investment securities
        -3,135,000 -3,544,000 -93,993,000 -2,233,000              
          proceeds from sale of investment securities
        5,182,000 44,219,000 3,417,000 5,825,000 103,785,000 99,490,000 6,049,000 10,751,000 15,821,000         
          net cash from investing activities
        -94,927,000 -32,018,000 -192,545,000 -180,148,000 -209,071,000 -114,143,000 -142,336,000 -91,411,000 -111,867,000 -356,764,000 -252,995,000 53,035,000 127,115,000 -444,694,000 3,592,000 -94,897,000 -114,634,000 
          cash flows from financing activities:
                         
          tax withholding on stock-based compensation
        -8,672,000 -23,000 -6,760,000              
          proceeds from sale of treasury stock
        8,000 462,000 210,000 210,000 210,000 28,000 64,000         
          contributions from noncontrolling interests
        237,000 2,283,000 5,439,000 2,977,000              
          distributions to and redemptions of noncontrolling interests
        -4,336,000 -31,045,000 -2,620,000 -3,510,000              
          distributions to exchangeable operating partnership unit holders
        -2,898,000 -753,000 -773,000 -773,000 -2,215,000 -1,479,000 -742,000 -964,000 -1,413,000 -1,426,000 -838,000 -1,293,000 -715,000 -2,244,000 -757,000 -1,706,000 -1,151,000 
          dividends paid to common shareholders
        -275,915,000 -127,812,000 -127,771,000 -127,684,000 -368,999,000 -247,138,000 -123,507,000 -222,275,000          
          dividends paid to preferred shareholders
        -3,413,000 -3,413,000 -3,413,000 -3,413,000 -10,239,000 -6,825,000 -3,413,000           
          proceeds from issuance of fixed rate unsecured notes, net of debt discount
        447,192,000   722,860,000 398,468,000 398,468,000           
          proceeds from unsecured credit facilities
        255,000,000 115,000,000 115,000,000 280,000,000 527,419,000 422,419,000 132,419,000 235,000,000 95,000,000         
          repayment of unsecured credit facilities
        -345,000,000 -115,000,000 -350,000,000 -80,000,000 -649,419,000 -264,419,000 -254,419,000 -235,000,000 -95,000,000         
          proceeds from notes payable
         10,000,000 12,000,000   15,500,000      10,000,000  54,852,000 5,852,000 
          repayment of notes payable
        -88,000,000 -21,343,000 -32,787,000 -110,862,000 -88,069,000 -7,597,000 -29,616,000 -5,995,000 -49,243,000 -49,243,000 -16,745,000 -11,790,000 -36,908,000 -352,000 -2,350,000 -2,350,000 
          scheduled principal payments
        -3,207,000 -2,923,000 -2,512,000 -2,548,000 -8,716,000 -6,121,000 -3,183,000 -5,054,000 -8,503,000 -3,318,000 -2,113,000 -2,261,000 -1,156,000 -4,262,000 -1,484,000 -4,282,000 -2,770,000 
          payment of financing costs
        -3,899,000 -27,000 -3,618,000 -194,000 -16,560,000             
          net cash from financing activities
        -32,903,000 -135,871,000 24,779,000 35,770,000 -366,265,000 -268,502,000 113,325,000 -268,934,000 -356,418,000 179,667,000 152,901,000 -167,676,000 -111,265,000 236,040,000 -65,291,000 -34,504,000 -21,762,000 
          net increase in cash and cash equivalents and restricted cash
        24,899,000 50,776,000 76,282,000 16,653,000 23,477,000  138,747,000 -25,668,000 59,957,000         
          cash and cash equivalents and restricted cash at beginning of the period
        120,661,000 61,884,000 91,354,000 91,354,000 91,354,000 68,776,000 95,027,000         
          cash and cash equivalents and restricted cash at end of the period
        145,560,000 50,776,000 76,282,000 78,537,000 114,831,000 79,923,000 230,101,000 43,108,000 154,984,000         
          supplemental disclosure of cash flow information:
                         
          cash paid for interest
        80,288,000 64,609,000                
          supplemental disclosure of non-cash transactions:
                         
          common and preferred stock, and exchangeable operating partnership dividends declared but not paid
        5,376,000 2,434,000                
          acquisition of operating real estate:
                         
          acquired lease intangible assets
        2,245,000 45,356,000                
          notes payable assumed in acquisition, at fair value
         126,420,000                
          intangible liabilities, accounts payable and other liabilities
        2,272,000 4,253,000                
          acquisition of previously unconsolidated real estate investments:
                         
          change in accrued capital expenditures
        7,823,000 788,000                
          contributions to investments in real estate partnerships
        14,045,000                 
          provision for impairment of real estate, net of tax
         3,374,000                
          loss on early extinguishment of debt
            180,000 180,000 180,000           
          realized and unrealized gain on investments
         -2,594,000   -4,439,000 -3,013,000 -2,358,000           
          acquisition of operating real estate, net of cash acquired of 4,273 and 14,143 in 2025 and 2024, respectively
                         
          issuance of notes receivable
            -32,651,000 -32,651,000 -29,830,000 -4,000,000          
          net proceeds from common stock issuance
               -10,000 61,284,000 2,372,000 2,332,000 2,622,000 1,637,000 203,333,000 3,128,000 79,002,000 11,501,000 
          common shares repurchased through share repurchase program
            -200,066,000 -200,066,000  -20,006,000 -75,419,000         
          redemption of exchangeable operating partnership units
                       -20,402,000 -10,831,000 
          repayment of fixed rate unsecured notes
            -250,000,000 -250,000,000        -100,000,000  -200,000,000 -200,000,000 
          cash paid for income taxes, net of refunds
         738,000                
          right of use assets obtained in exchange for new operating lease liabilities
                         
          sale of leased asset in exchange for net investment in sales-type lease
                         
          acquisition of real estate assets
                         
          exchangeable operating partnership units issued for acquisition of real estate
                         
          stock-based compensation capitalized
         479,000                
          contributions from limited partners in consolidated partnerships
              1,472,000 1,225,000    205,000 205,000 25,000  352,000  
          loss on sale of real estate, net of tax
                         
          repurchase of exchangeable operating partnership units
                         
          tenant and other receivable and other assets
                         
          acquisition of unconsolidated real estate investments:
                         
          reallocation of equity upon acquisition of non-controlling interest
                         
          acquisition of operating real estate, net of cash acquired of 787
           -83,232,000              
          benefit from impairment of real estate
                         
          gain on early extinguishment of debt
                         
          realized and unrealized (gain) loss on investments
                         
          acquisition of operating real estate, net of cash acquired of 3,061 in 2022
                         
          acquisition of ubp, net of cash acquired of 14,143
                         
          acquisition of investment securities
            -99,035,000 -95,519,000 -92,527,000 -2,748,000 -15,205,000         
          repurchase of common shares in conjunction with equity award plans
            -8,776,000 -8,776,000 -8,730,000 -7,621,000 -6,438,000         
          redemption of eop units
                         
          net change in cash and cash equivalents and restricted cash
                         
          cash and cash equivalents and restricted cash at beginning of the year
                         
          cash and cash equivalents and restricted cash at end of the year
                         
          previously held equity investments in real estate assets acquired
                         
          mortgage loans assumed by company with the acquisition of real estate
                         
          ubp acquisition:
                         
          noncontrolling interest assumed in acquisition, at fair value
                         
          common stock exchanged for ubp shares
                         
          preferred stock exchanged for ubp shares
                         
          eop units issued for acquisition of real estate
                         
          real estate received in lieu of rental revenue
                         
          change in fair value of securities
                         
          acquisition of operating real estate
            -45,205,000 -45,208,000    -63,117,000 -34,025,000 -19,337,000      
          acquisition of ubp, net of cash acquired of 14,143 in 2023
                         
          contributions from non-controlling interests
            6,533,000 3,001,000            
          distributions to and redemptions of non-controlling interests
            -9,435,000 -6,254,000            
          amortization of deferred loan costs and debt premiums
             6,232,000 2,762,000 2,983,000 4,297,000         
          accretion of above and below market lease intangibles
             -12,193,000 -5,287,000           
          payment of loan costs
             -13,453,000 -13,289,000 -141,000 -82,000         
          net decrease in cash and cash equivalents and restricted cash
             -11,431,000            
          distributions to limited partners in consolidated partnerships
              -4,364,000   -4,120,000        
          early extinguishment of debt
                         
          settlement of derivative instruments
                         
          tenants’ security, escrow deposits and prepaid rent
                         
          acquisition of operating real estate, net of cash acquired of 0, 3,061 and 2,991 in 2023, 2022 and 2021, respectively
                         
          net change in cash, cash equivalents, and restricted cash
                         
          cash, cash equivalents, and restricted cash at beginning of the year
                         
          cash, cash equivalents, and restricted cash at end of the year
                         
          (accretion) and amortization of above and below market lease intangibles
               -13,842,000 -15,625,000         
          proceeds from sale of real estate and ff&e
               3,745,000          
          contributions from (distributions to) limited partners in consolidated partnerships
                1,568,000         
          goodwill impairment
                         
          settlement of derivative instrument
                         
          deferred compensation (revenue) expense
                         
          acquisition of operating real estate, net of cash acquired of 3,061 and 2,991 in 2022 and 2021, respectively
                         
          collection (issuance) of notes receivable
                         
          dividends paid to common stockholders
                -321,484,000 -134,331,000 -89,485,000 -79,406,000 -39,596,000 -106,426,000 -34,654,000 -96,247,000 -63,987,000 
          proceeds from issuance of fixed rate unsecured notes
                 398,108,000 398,108,000   349,505,000  148,646,000 148,646,000 
          repayments of proceeds from unsecured credit facilities
                         
          early redemption costs
                         
          net increase in cash, cash equivalents, and restricted cash
                         
          common stock and exchangeable operating partnership dividends declared but not paid
                         
          mortgage loan assumed by purchaser with the sale of real estate
                         
          common stock issued by parent company for partnership units exchanged
                         
          real estate received in lieu of promote interest
                         
          common stock issued for dividend reinvestment plan
                         
          reallocation of equity upon acquisition of a limited partner's interest in a consolidated partnership
                         
          common stock issued for dividend reinvestment in trust
                         
          contribution of stock awards into trust
                         
          distribution of stock held in trust
                         
          acquisition of operating real estate, net of cash acquired of 3,061 in 2022 and 2,991 in 2021
                -141,275,000         
          benefit from impairment of real estate, net of tax
                         
          net provided by investing activities
                         
          acquisition of operating real estate, net of cash acquired of 2,991 in 2021
                         
          (distributions to) contributions from limited partners in consolidated partnerships
                  -3,629,000       
          advance deposits refunded on acquisition of operating real estate
                         
          proceeds from sale of real estate investments
                 211,024,000 173,313,000 219,632,000 194,467,000 149,912,000 59,240,000 129,475,000 62,909,000 
          advance deposits refunded (paid) on acquisition of operating real estate
                         
          benefit from impairment of goodwill
                         
          benefit from impairment, net of tax
                         
          advance deposits paid on acquisition of operating real estate
                         
          distribution of earnings from operations of investments in real estate partnerships
                 24,043,000 15,496,000       
          distributions received from investments in real estate partnerships
                 11,065,000 2,651,000 3,085,000  23,958,000 9,814,000 21,464,000 18,108,000 
          benefit from impairment
                         
          deferred income tax benefit of taxable reit subsidiary
                         
          gain on derivative instruments
                         
          acquisition of equity one, net of cash and restricted cash acquired of 74,507
                         
          proceeds from (issuances of) notes receivable
                         
          regency centers corporationconsolidated statements of cash flows
                         
          for the years ended december 31, 2018, 2017, and 2016
                         
          acquisition of treasury stock
                         
          redemption of preferred stock and partnership units
                         
          dividends paid to preferred stockholders
                 -9,838,000 -4,919,000 -9,838,000 -4,919,000 -11,825,000 -3,662,000 -4,971,000 -2,794,000 
          cash paid (received) for income taxes
                         
          mortgage loans assumed for the acquisition of operating real estate
                         
          change in fair value of securities available-for-sale
                         
          equity one merger:
                         
          notes payable assumed in equity one merger, at fair value
                         
          common stock exchanged for equity one shares
                         
          deconsolidation of previously consolidated partnership:
                         
          real estate
                         
          notes payable
                         
          other assets and liabilities
                         
          limited partners' interest in consolidated partnerships
                         
          see accompanying notes to consolidated financial statements.
                         
          loss on derivative instruments
                         
          proceeds from (issuance of) notes receivable
                         
          accounts receivable
                         
          straight-line rent receivables
                         
          tenants’ security and escrow deposits and prepaid rent
                         
          acquisition of equity one, net of cash and restricted cash acquired of 72,784
                         
          acquisition of securities
                         
          proceeds from sale of securities
                         
          amortization of deferred loan cost and debt premium
                         
          deferred income tax benefit
                         
          net accretion of above and below market lease intangibles
                         
          restricted cash
                         
          straight-line rent receivable
                         
          costs paid in advance of real estate acquisitions
                         
          acquisition of equity one, net of cash acquired of 72,534
                         
          (issuance) / collection of notes receivable
                         
          for the years ended december 31, 2017, 2016, and 2015
                         
          repurchase of common shares in conjunction with tax withholdings on equity award plans
                         
          net increase in cash and cash equivalents
                  21,049,000  45,598,000 -64,088,000 -41,729,000 20,312,000  
          cash and cash equivalents at beginning of the year
                         
          cash and cash equivalents at end of the year
                         
          cash (received) paid for income taxes
                         
          cash and cash equivalents at beginning of the period
                 34,046,000 34,046,000 42,458,000 42,458,000 95,320,000 95,320,000 29,869,000 29,869,000 
          cash and cash equivalents at end of the period
                 33,571,000 55,095,000 36,594,000 88,056,000 31,232,000 53,591,000 50,181,000 5,380,000 
          amortization and (accretion) of above and below market lease intangibles
                         
          gain on remeasurement of investment in real estate partnership
                         
          provision for impairment
                         
          regency centers corporationconsolidated statements of cash flowsfor the years ended december 31, 2016, 2015, and 2014
                         
          net decrease in cash and cash equivalents
                 -475,000  -5,864,000     -24,489,000 
          cash paid for income taxes
                         
          common stock issued for partnership units exchanged
                      1,770,000   
          mortgage loans assumed for the acquisition of real estate
                         
          initial fair value of non-controlling interest recorded at acquisition
                         
          acquisition of previously unconsolidated real estate investments
                         
          change in fair value of derivative instruments
                         
          gain on sale of real estate
                         
          advance deposits on acquisition of operating real estate
                         
          dividends on investments
                         
          regency centers corporationconsolidated statements of cash flowsfor the years ended december 31, 2015, 2014, and 2013
                         
          real estate received through distribution in kind
                         
          mortgage loans assumed through distribution in kind
                         
          unrealized gain on available-for-sale securities
                         
          deferred income tax expense of taxable reit subsidiary
                         
          (gain) on derivative instruments
                         
          realized and unrealized
                         
          regency centers corporationconsolidated statements of cash flowsfor the years ended december 31, 2014, 2013, and 2012
                         
          net proceeds from issuance of preferred stock
                     72,778,000  120,831,000  
          distributions to preferred unit holders
                 -1,862,000 -931,000 -1,862,000 -931,000 -5,778,000 -2,112,000 -14,385,000 -10,163,000 
          real estate contributed for investments in real estate partnerships
                         
          real estate received through foreclosure on notes receivable
                         
          net gain on sale of properties
                 -56,622,000 -47,967,000 -59,256,000 -46,527,000 -47,728,000 -17,724,000 -30,207,000 -11,129,000 
          hedge ineffectiveness
                         
          realized and unrealized gains on trading securities held in trust
                         
          development of real estate, including acquisition of land
                         
          dividends on trading securities held in trust
                         
          (gain) loss on derivative instruments
                         
          proceeds from sale securities
                         
          distributions (to) from limited partners in consolidated partnerships
                         
          development of real estate including acquisition of land
                 -481,790,000 -385,922,000       
          proceeds from sale of trading securities
                         
          redemption of preferred stock
                         
          equity in (income) loss of investments in real estate partnerships
                         
          realized and unrealized (gain) loss on trading securities held in trust
                         
          (issuance) collection of notes receivable
                         
          acquisition of trading securities held in trust
                         
          proceeds from sale of trading securities held in trust
                         
          payment of premium on tender offer
                         
          realized and unrealized (gains) losses on trading securities held in trust
                         
          redemption of preferred partnership units
                         
          benefit from doubtful accounts
                         
          deferred compensation income
                         
          realized gain on trading securities held in trust
                         
          unrealized gain on trading securities held in trust
                         
          other receivables
                         
          proceeds from line of credit
                         
          repayment of line of credit
                         
          equity in loss of investments in real estate partnerships
                         
          unrealized (gain) loss on trading securities held in trust
                         
          tenants’ security and escrow deposits
                 255,000 142,000 408,000 -70,000 67,000 -90,000 230,000 237,000 
          equity in loss (income) of investments in real estate partnerships
                         
          tenants' security and escrow deposits
                         
          amortization and accretion of above and below market lease intangibles
                         
          amortization or rent inducements
                         
          deferred loan cost and debt premium amortization
                 2,612,000 1,569,000 1,650,000 823,000 1,917,000 584,000 1,813,000 1,209,000 
          above and below market lease intangibles amortization and accretion
                         
          (repayment of) proceeds from unsecured credit facilities
                         
          payment of debt premium on tender offer
                         
          tenant receivables
                 346,000 6,545,000 -1,442,000 4,844,000 3,092,000 10,860,000 4,773,000 12,304,000 
          net income attributable to controlling interests
                         
          adjustments to reconcile net income attributable to controlling interests to net cash from operating activities:
                         
          noncontrolling interest of preferred units
                         
          noncontrolling interest of exchangeable operating partnership units
                         
          noncontrolling interest of limited partners’ interest in consolidated partnerships
                         
          minority interest of preferred units
                 2,794,000 1,862,000 1,862,000 931,000 7,174,000 2,112,000 17,621,000 10,163,000 
          minority interest of exchangeable operating partnership units
                 1,270,000 979,000 1,672,000 1,180,000 2,392,000 863,000 1,417,000 826,000 
          minority interest of limited partners
                 757,000 516,000 4,775,000 511,000 203,000 76,000 255,000 169,000 
          proceeds from (repayment of) unsecured credit facilities
                         
          stock based compensation, net of capitalization
                         
          benefit from loss
                         
          above and below market lease intangibles
                 -1,332,000 -727,000 -617,000      
          stock based compensation
                 14,595,000 9,555,000 8,552,000 4,281,000 15,148,000 4,343,000 10,133,000 7,075,000 
          benefit from loss on real estate investments
                         
          repayment of notes receivable
                 530,000 27,000 14,601,000 14,589,000 3,751,000 2,394,000 45,530,000 11,146,000 
          deferred loan costs
                 -5,675,000 -5,381,000 -98,000  -3,158,000 -427,000 -3,844,000 -3,787,000 
          benefit from loss on operating properties
                         
          hedge settlement
                     -7,310,000  -5,720,000 -5,720,000 
          repayment (issuance) of notes receivable
                         
          redemption of preferred units
                     -54,000,000  -125,000,000  
          proceeds (repayment) of unsecured line of credit
                         
          provision for loss on operating properties
                   500,000      
          repayment of unsecured line of credit
                 -11,000,000 -91,000,000  -54,000,000     
          development of real estate including land acquired
                   -159,382,000 -77,150,000     
          proceeds from (repayment of) unsecured line of credit
                         
          distributions in excess of earnings from operations of investments in real estate partnerships
                         
          (repayment) proceeds of unsecured line of credit
                         
          distributions from operations of investments in real estate partnerships
                   17,588,000 8,730,000 16,782,000 3,761,000 10,822,000 7,266,000 
          (distributions) contributions from limited partners in consolidated partnerships
                         
          (repayment of) proceeds from unsecured line of credit
                   -59,000,000      
          (issuance) repayment of notes receivable
                         
          repurchase of common stock
                         
          (repayments) proceeds from unsecured line of credit
                      -25,000,000   
          acquisition of real estate
                       -26,560,000 -23,419,000 
          development of real estate
                     -216,622,000 -56,690,000 -246,185,000 -182,160,000 
          (repayment) proceeds from unsecured line of credit
                     -75,000,000    
          proceeds from unsecured line of credit
                       35,000,000 110,000,000 
          contributions (distributions) from limited partners in consolidated partnerships
                      29,000   
          supplemental disclosure of cash flow information - cash paid for interest
                      31,246,000   
          real estate contributed as investments in real estate partnerships
                      5,264,000   
          change in fair value of derivative instrument
                         
          other income
                         
          provision for loss on operating and development properties
                         
          contributions/distributions from/to limited partners in consolidated partnerships
                        72,000 
          net proceeds from issuance of series 3 preferred stock