7Baggers
Quarterly
Annual
    Unit: USD2025-09-30 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 
      
                                                                                     
      assets
                                                                                     
      net real estate investments:
                                                                                     
      real estate assets, at cost
    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
    3,180,995,000 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 1,014,788,000 990,744,000 961,830,000 933,708,000 909,572,000 892,695,000 864,975,000 844,873,000 835,447,000 823,601,000 808,699,000 782,749,000 768,301,000 834,681,000 813,187,000 791,619,000 769,829,000 755,378,000 729,133,000 700,878,000 695,432,000 672,342,000 646,236,000 622,163,000 632,407,000 607,944,000 577,737,000 554,595,000 545,979,000 538,779,000 518,614,000 497,498,000 478,560,000 459,179,000 441,432,000 427,389,000 421,650,000 412,762,000 398,371,000 380,613,000 371,386,000 364,362,000 352,818,000 338,609,000 
      real estate assets
    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
    16,668,000 16,609,000 16,520,000 16,291,000                                                                              
      investments in real estate partnerships
    367,837,000 389,828,000 389,175,000 399,044,000 387,413,000 378,091,000 368,709,000 370,605,000 382,300,000 342,439,000 346,390,000 350,377,000 332,248,000 330,887,000 357,998,000 372,591,000 379,704,000 409,627,000 474,285,000 489,500,000 469,522,000 472,863,000 465,495,000 456,733,000 463,001,000 458,051,000 451,220,000 448,257,000 386,304,000 380,930,000 376,800,000 381,691,000 296,699,000 274,940,000 279,270,000 287,500,000 306,206,000 321,164,000 309,544,000 325,243,000 333,167,000 328,398,000 339,922,000 353,772,000 358,849,000 414,509,000 428,606,000 432,287,000 442,927,000 450,021,000 424,726,000 395,933,000 386,882,000 425,460,000 425,559,000 408,238,000 428,592,000 462,778,000 449,413,000 333,963,000 326,212,000 333,620,000 338,107,000 368,313,000 383,408,000 428,730,000 423,138,000 430,889,000 432,910,000 446,653,000 429,106,000 435,251,000 434,090,000 426,494,000 424,844,000 438,228,000 545,617,000 551,697,000 567,666,000 180,478,000 179,677,000 
      net real estate investments
    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 3,351,334,000 2,993,642,000 2,994,062,000 
      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                                                                                 
      tenant and other receivables
    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 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                                                                                 
      right of use assets
    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
    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 15,956,000 21,248,000 12,711,000 
      total assets
    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              
      liabilities and equity
                                                                                     
      liabilities:
                                                                                     
      notes payable
    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 1,223,352,000 1,291,039,000 1,293,090,000 
      unsecured credit facility
    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
    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 99,145,000 105,093,000 113,006,000 113,607,000 141,395,000 156,530,000 155,561,000 147,292,000 164,479,000 185,428,000 172,569,000 144,865,000 140,940,000 146,893,000 145,202,000 103,875,000 110,800,000 103,009,000 112,164,000 79,919,000 102,443,000 
      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                                                                                 
      lease liabilities
    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
    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
    5,998,923,000 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 1,890,227,000 1,560,840,000 1,610,743,000 
      commitments and contingencies
                                                                                 3,557,659,000  3,195,566,000  
      equity:
                                                                                     
      shareholders' equity:
                                                                                     
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at september 30, 2025 and december 31, 2024
    225,000,000                                                                                 
      common stock 0.01 par value per share, 220,000,000 shares authorized; 182,232,143 and 181,361,454 shares issued and outstanding at september 30, 2025 and december 31, 2024, respectively
    1,822,000                                                                                 
      treasury stock
    -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 -111,414,000 -111,414,000 -111,414,000 
      additional paid-in-capital
    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 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        -16,521,000 -5,148,000 -5,291,000 
      distributions in excess of net income
    -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 -74,057,000 -79,538,000 -79,570,000 
      total shareholders' equity
    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 279,804 and 81,076 at september 30, 2025 and december 31, 2024, respectively
    137,745,000                                                                                 
      limited partners' interests in consolidated partnerships
    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
    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
    7,060,056,000 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
    13,058,979,000 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                  
      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                                                                                
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at june 30, 2025 and december 31, 2024
     225,000,000                                                                                
      common stock 0.01 par value per share, 220,000,000 shares authorized; 181,550,531 and 181,361,454 shares issued and outstanding at june 30, 2025 and december 31, 2024, respectively
     1,816,000                                                                                
      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                                                                               
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at march 31, 2025 and december 31, 2024
      225,000,000                                                                               
      common stock 0.01 par value per share, 220,000,000 shares authorized; 181,525,936 and 181,361,454 shares issued and outstanding at march 31, 2025 and december 31, 2024, respectively
      1,815,000                                                                               
      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                                                                              
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at december 31, 2024 and 2023
       225,000,000                                                                              
      common stock 0.01 par value per share, 220,000,000 shares authorized; 181,361,454 and 184,581,070 shares issued and outstanding at december 31, 2024 and 2023, respectively
       1,814,000                                                                              
      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                                                                             
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at september 30, 2024 and december 31, 2023 with liquidation preference of 25 per share
        225,000,000                                                                             
      common stock 0.01 par value per share, 220,000,000 shares authorized; 181,502,569 and 184,581,070 shares issued and outstanding at september 30, 2024 and december 31, 2023, respectively
        1,815,000                                                                             
      accumulated other comprehensive loss
        -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    
      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                                                                            
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in series a and series b at june 30, 2024 and december 31, 2023 with liquidation preference of 25 per share
         225,000,000                                                                            
      common stock 0.01 par value per share, 220,000,000 shares authorized; 181,493,494 and 184,581,070 shares issued and outstanding at june 30, 2024 and december 31, 2023, respectively
         1,815,000                                                                            
      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                                                                           
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 and shares issued and outstanding, in the aggregate, in series a and series b at march 31, 2024 and december 31, 2023 with liquidation preference of 25 per share
          225,000,000                                                                           
      common stock 0.01 par value per share, 220,000,000 shares authorized; 184,774,486 and 184,581,070 shares issued and outstanding at march 31, 2024 and december 31, 2023, respectively
          1,848,000                                                                           
      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
                                                                                     
      preferred stock 0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued, in the aggregate, in series a and series b at december 31, 2023 with liquidation preferences of 25 per share and no shares authorized or issued at december 31, 2022
           225,000,000                                                                          
      common stock 0.01 par value per share, 220,000,000 shares authorized; 184,581,070 and 171,124,593 shares issued at december 31, 2023 and 2022, respectively
           1,846,000                                                                          
      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, 30,000,000 shares authorized; 9,000,000 shares issued at september 30, 2023 with liquidation preferences of 25 per share and no shares authorized or issued at december 30, 2022
            225,000,000                                                                         
      common stock; 0.01 par value per share, 220,000,000 shares authorized; 184,576,090 and 171,124,593 shares issued at september 30, 2023 and december 31, 2022, respectively
            1,846,000                                                                         
      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                                                                        
      common stock; 0.01 par value per share, 220,000,000 shares authorized; 170,998,004 and 171,124,593 shares issued at june 30, 2023 and december 31, 2022, respectively
             1,710,000                                                                        
      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                                                                       
      common stock; 0.01 par value per share, 220,000,000 shares authorized; 170,958,422 and 171,124,593 shares issued at march 31, 2023 and december 31, 2022, respectively
              1,710,000                                                                       
      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
                                                                                     
      common stock 0.01 par value per share, 220,000,000 shares authorized; 171,124,593 and 171,213,008 shares issued at december 31, 2022 and 2021, respectively
               1,711,000                                                                      
      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 1,503,972,000 1,501,708,000 1,498,717,000 
      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
                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                                                                  
      common stock 0.01 par value per share, 220,000,000 shares authorized; 171,213,008 and 169,680,138 shares issued at december 31, 2021 and 2020, respectively
                   1,712,000                                                                  
      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                                                             
      common stock 0.01 par value per share, 220,000,000 shares authorized; 167,571,218 and 167,904,593 shares issued at december 31, 2019 and 2018, respectively
                        1,676,000                                                             
      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 26,252,000 53,591,000 95,320,000 
      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                                                         
      common stock 0.01 par value per share, 220,000,000 shares authorized; 167,904,593 and 171,364,908 shares issued at december 31, 2018 and 2017, respectively
                            1,679,000                                                         
      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 1,008,235,000 928,083,000 905,929,000 895,554,000 929,425,000 747,163,000 615,450,000 682,646,000 562,489,000 487,717,000 413,677,000 410,764,000 378,701,000 379,313,000 426,216,000 
      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 1,505,278,000 1,497,124,000 1,494,312,000 
      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 1,001,137,000 974,244,000 923,062,000 939,851,000 995,976,000 986,700,000 968,859,000 942,792,000 876,241,000 843,384,000 862,851,000 829,285,000 858,210,000 853,078,000 853,275,000 827,058,000 817,591,000 826,266,000 806,207,000 
      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 1,927,265,000 1,944,493,000 1,915,655,000 
      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, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2016, with liquidation preferences of 25 per share
                                                                                     
      common stock 0.01 par value per share, 220,000,000 and 150,000,000 shares authorized; 171,364,908 and 104,497,286 shares issued at december 31, 2017 and 2016, respectively
                                1,714,000                                                     
      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                                                   
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 3,000,000 series 7 shares issued and outstanding at june 30, 2017, and 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2016, with liquidation preferences of 25 per share
                                  75,000,000                                                   
      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                                                  
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 3,000,000 series 7 shares issued and outstanding at march 31, 2017, and 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2016, with liquidation preferences of 25 per share
                                   75,000,000                                                  
      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                                                  
      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                                                 
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2016 and 2015, with liquidation preferences of 25 per share
                                    325,000,000                                                 
      common stock 0.01 par value per share,150,000,000 shares authorized; 104,497,286 and 97,212,638 shares issued at december 31, 2016 and 2015, respectively
                                    1,045,000                                                 
      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 22,715,000 23,252,000 25,646,000 
      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                                                
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at september 30, 2016 and december 31, 2015, with liquidation preferences of 25 per share
                                     325,000,000                                                
      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                                               
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at june 30, 2016 and december 31, 2015, with liquidation preferences of 25 per share
                                      325,000,000                                               
      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                                              
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at march 31, 2016 and december 31, 2015, with liquidation preferences of 25 per share
                                       325,000,000                                              
      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                                             
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2015 and december 31, 2014, with liquidation preferences of 25 per share
                                        325,000,000                                             
      common stock 0.01 par value per share,150,000,000 shares authorized; 97,212,638 and 94,108,061 shares issued at december 31, 2015 and 2014, respectively
                                        972,000                                             
      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                                            
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at september 30, 2015 and december 31, 2014, with liquidation preferences of 25 per share
                                         325,000,000                                            
      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 24,473,000 15,910,000 4,916,000 
      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                                           
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at june 30, 2015 and december 31, 2014, with liquidation preferences of 25 per share
                                          325,000,000                                           
      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                                          
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at march 31, 2015 and december 31, 2014, with liquidation preferences of 25 per share
                                           325,000,000                                          
      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                                         
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2014 and december 31, 2013, with liquidation preferences of 25 per share
                                            325,000,000                                         
      common stock 0.01 par value per share,150,000,000 shares authorized; 94,108,061 and 92,333,161 shares issued at december 31, 2014 and 2013, respectively
                                            941,000                                         
      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                                        
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at september 30, 2014 and december 31, 2013, with liquidation preferences of 25 per share
                                             325,000,000                                        
      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                                       
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at june 30, 2014 and december 31, 2013, with liquidation preferences of 25 per share
                                              325,000,000                                       
      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                                      
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at march 31, 2014 and december 31, 2013, with liquidation preferences of 25 per share
                                               325,000,000                                      
      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                                     
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at december 31, 2013 and december 31, 2012, with liquidation preferences of 25 per share
                                                325,000,000                                     
      common stock 0.01 par value per share,150,000,000 shares authorized; 92,333,161 and 90,394,486 shares issued at december 31, 2013 and 2012, respectively
                                                923,000                                     
      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                                    
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at september 30, 2013 and december 31, 2012, with liquidation preferences of 25 per share
                                                 325,000,000                                    
      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                                   
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at june 30, 2013 and december 31, 2012, with liquidation preferences of 25 per share
                                                  325,000,000                                   
      common stock 0.01 par value per share,150,000,000 shares authorized; 92,279,321 and 90,394,486 shares issued at june 30, 2013 and december 31, 2012, respectively
                                                  923,000                                   
      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                                  
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 series 6 and 7 shares issued and outstanding at march 31, 2013 and december 31, 2012, respectively, with liquidation preferences of 25 per share
                                                   325,000,000                                  
      common stock 0.01 par value per share,150,000,000 shares authorized; 91,397,030 and 90,394,486 shares issued at march 31, 2013 and december 31, 2012, respectively
                                                   914,000                                  
      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                                 
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 and 11,000,000 series 3-7 shares issued and outstanding at december 31, 2012 and 2011, respectively, with liquidation preferences of 25 per share
                                                    325,000,000                                 
      common stock 0.01 par value per share,150,000,000 shares authorized; 90,394,486 and 89,921,858 shares issued at december 31, 2012 and 2011, respectively
                                                    904,000                                 
      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                                
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 and 11,000,000 series 3-7 shares issued and outstanding at september 30, 2012 and december 31, 2011, respectively, with liquidation preferences of 25 per share
                                                     325,000,000                                
      common stock 0.01 par value per share,150,000,000 shares authorized; 90,387,798 and 89,921,858 shares issued at september 30, 2012 and december 31, 2011, respectively
                                                     904,000                                
      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                               
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized; 13,000,000 and 11,000,000 series 3-6 shares issued and outstanding at june 30, 2012 and december 31, 2011, respectively, with liquidation preferences of 25 per share
                                                      325,000,000                               
      common stock 0.01 par value per share,150,000,000 shares authorized; 89,938,760 and 89,921,858 shares issued at june 30, 2012 and december 31, 2011, respectively
                                                      899,000                               
      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                              
      preferred stock, 0.01 par value per share, 32,000,000 shares authorized; 13,000,000 and 11,000,000 series 3-6 shares issued and outstanding at march 31, 2012 and december 31, 2011, respectively, with liquidation preferences of 25 per share
                                                       325,000,000                              
      common stock 0.01 par value per share,150,000,000 shares authorized; 89,929,528 and 89,921,858 shares issued at march 31, 2012 and december 31, 2011, respectively
                                                       899,000                              
      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 30,000,000 236,000,000 121,000,000 158,000,000 103,000,000 108,000,000 162,000,000 125,000,000 265,000,000 175,000,000 200,000,000 
      acquired lease intangible liabilities, less accumulated accretion of 4,750 and 11,010 at december 31, 2011 and 2010, respectively
                                                        12,662,000                             
      preferred stock, 0.01 par value per share, 30,000,000 shares authorized;11,000,000 series 3-5 shares issued and outstanding at december 31, 2011 and 2010 with liquidation preferences of 25 per share
                                                        275,000,000                             
      common stock 0.01 par value per share,150,000,000 shares authorized; 89,921,858 and 81,886,872 shares issued at december 31, 2011 and 2010, respectively
                                                        899,000                             
      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, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at september 30, 2011 and december 31, 2010 with liquidation preferences of 25 per share
                                                         275,000,000                            
      common stock .01 par value per share, 150,000,000 shares authorized; 89,913,234 and 81,886,872 shares issued at september 30, 2011 and december 31, 2010, respectively
                                                         899,000                            
      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 10,027,000 9,959,000 10,049,000 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at june 30, 2011 and december 31, 2010 with liquidation preferences of 25 per share
                                                          275,000,000                           
      common stock .01 par value per share, 150,000,000 shares authorized; 89,905,318 and 81,886,872 shares issued at june 30, 2011 and december 31, 2010, respectively
                                                          899,000                           
      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                          
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at march 31, 2011 and december 31, 2010 with liquidation preferences of 25 per share
                                                           275,000,000                          
      common stock .01 par value per share, 150,000,000 shares authorized; 89,895,007 and 81,886,872 shares issued at march 31, 2011 and december 31, 2010, respectively
                                                           899,000                          
      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
                                                                                     
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at december 31, 2010 and 2009 with liquidation preferences of 25 per share
                                                            275,000,000                         
      common stock .01 par value per share, 150,000,000 shares authorized; 81,886,872 and 81,539,296 shares issued at december 31, 2010 and 2009, respectively
                                                            819,000                         
      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                        
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at september 30, 2010 and december 31, 2009 with liquidation preferences of 25 per share
                                                             275,000,000                        
      common stock .01 par value per share, 150,000,000 shares authorized; 81,867,133 and 81,539,296 shares issued at september 30, 2010 and december 31, 2009, respectively
                                                             819,000                        
      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                       
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at june 30, 2010 and december 31, 2009 with liquidation preferences of 25 per share
                                                              275,000,000                       
      common stock .01 par value per share, 150,000,000 shares authorized; 81,857,922 and 81,539,296 shares issued at june 30, 2010 and december 31, 2009, respectively
                                                              819,000                       
      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                      
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at march 31, 2010 and december 31, 2009 with liquidation preferences of 25 per share
                                                               275,000,000                      
      common stock .01 par value per share, 150,000,000 shares authorized; 81,584,156 and 81,539,296 shares issued at march 31, 2010 and december 31, 2009, respectively
                                                               816,000                      
      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                     
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at december 31, 2009 and 2008 with liquidation preferences of 25 per share
                                                                275,000,000                     
      common stock .01 par value per share, 150,000,000 shares authorized; 81,539,296 and 75,634,881 shares issued at december 31, 2009 and 2008, respectively
                                                                815,000                     
      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 2,028,000 1,932,000 1,827,000 
      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 stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at september 30, 2009 and december 31, 2008 with liquidation preferences of 25 per share
                                                                 275,000,000                    
      common stock .01 par value per share, 150,000,000 shares authorized; 85,976,167 and 75,634,881 shares issued at september 30, 2009 and december 31, 2008, respectively
                                                                 860,000                    
      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 stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at june 30, 2009 and december 31, 2008 with liquidation preferences of 25 per share
                                                                  275,000,000                   
      common stock .01 par value per share, 150,000,000 shares authorized; 85,703,371 and 75,634,881 shares issued at june 30, 2009 and december 31, 2008, respectively
                                                                  857,000                   
      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 stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at march 31, 2009 and december 31, 2008 with liquidation preferences of 25 per share
                                                                   275,000,000                  
      common stock .01 par value per share, 150,000,000 shares authorized; 75,682,133 and 75,634,881 shares issued at march 31, 2009 and december 31, 2008, respectively
                                                                   756,000                  
      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 49,158,000 101,762,000 101,762,000 101,762,000 
      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                 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at december 31, 2008 with liquidation preferences of 25 per share and 800,000 series 3 and 4 shares and 3,000,000 series 5 shares issued and outstanding at december 31, 2007 with liquidation preferences of 250 and 25 per share, respectively
                                                                    275,000,000                 
      common stock .01 par value per share, 150,000,000 shares authorized; 75,634,881 and 75,168,662 shares issued at december 31, 2008 and 2007, respectively
                                                                    756,000                 
      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 78,592,000 131,645,000 133,018,000 134,364,000 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at september 30, 2008 with liquidation preferences of 25 per share and 800,000 series 3 and 4 shares and 3,000,000 series 5 shares issued and outstanding at december 31, 2007 with liquidation preferences of 250 and 25 per share, respectively
                                                                     275,000,000                
      common stock .01 par value per share, 150,000,000 shares authorized; 75,598,609 and 75,168,662 shares issued at september 30, 2008 and december 31, 2007, respectively
                                                                     756,000                
      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               
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at june 30, 2008 with liquidation preferences of 25 per share and 800,000 series 3 and 4 shares and 3,000,000 series 5 shares issued and outstanding at december 31, 2007 with liquidation preferences of 250 and 25 per share, respectively
                                                                      275,000,000               
      common stock .01 par value per share, 150,000,000 shares authorized; 75,567,808 and 75,168,662 shares issued at june 30, 2008 and december 31, 2007, respectively
                                                                      756,000               
      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              
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 11,000,000 series 3-5 shares issued and outstanding at march 31, 2008 with liquidation preferences of 25 and 800,000 series 3 and 4 shares and 3,000,000 series 5 shares issued and outstanding at december 31, 2007 with liquidation preferences of 250 and 25 per share, respectively
                                                                       275,000,000              
      common stock .01 par value per share, 150,000,000 shares authorized; 75,520,392 and 75,168,662 shares issued at march 31, 2008 and december 31, 2007, respectively
                                                                       755,000              
      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             
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 series 5 and 800,000 series 3 and 4 shares issued and outstanding at both december 31, 2007 and 2006 with liquidation preferences of 25 and 250 per share, respectively
                                                                        275,000,000             
      common stock .01 par value per share, 150,000,000 shares authorized; 75,168,662 and 74,431,787 shares issued at december 31, 2007 and 2006, respectively
                                                                        752,000             
      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 72,704,000 73,682,000 286,081,000 
      percentage rent
                                                                        4,661,000 889,000 342,000 735,000 4,428,000 1,002,000 527,000 437,000 4,353,000 855,000 270,000 551,000 4,083,000 
      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 20,716,000 21,746,000 80,927,000 
      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 16,848,000   
      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 93,626,000 111,484,000 101,688,000 391,948,000 
      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 21,166,000 21,004,000 81,125,000 
      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 13,240,000 13,592,000 53,863,000 
      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 9,402,000 8,652,000 30,282,000 
      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 10,148,000 10,488,000 40,403,000 
      other incomes
                                                                        10,081,000 1,625,000 1,261,000 460,000 15,927,000 -825,000 1,733,000 3,658,000 2,758,000 204,000 534,000 1,428,000 8,043,000 
      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 54,490,000 55,164,000 213,716,000 
      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 -3,598,000 -6,542,000 -39,387,000 
      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 18,719,000 14,534,000 42,619,000 
      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 -2,113,000 -2,112,000 -19,829,000 
      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 -751,000 -656,000 -2,156,000 
      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 -82,000 -76,000 -319,000 
      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 -3,953,000 946,000 2,391,000 10,194,000 
      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 35,329,000 29,146,000 113,309,000 
      discontinued operations
                                                                        390 50 280 10 930 10 40 460 960 220 140 150 370 
      operating income from discontinued operations
                                                                        1,947,000 184,000 396,000 733,000 4,999,000 369,000 -450,000 952,000 8,341,000 712,000 973,000 406,000 4,142,000 
      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 8,551,000 9,202,000 23,018,000 
      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 43,880,000 38,348,000 136,327,000 
      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 -3,663,000 -3,662,000 -8,633,000 
      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 40,217,000 34,686,000 127,694,000 
      income per common share—basic
                                                                                     
      continuing operations
                                                                        2,260 480 360 740 1,980 560 430 510 1,290 200 500 400 1,710 
      net income for common stockholders per share
                                                                        2,650 530 640 750 2,910 570 470 970 2,250 420 640 550 2,080 
      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 4,684,000 4,923,000 5,161,000 
      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 27,855,000 29,324,000 30,775,000 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 series 5 and 800,000 series 3 and 4 shares issued and outstanding at both september 30, 2007 and december 31, 2006 with liquidation preferences of 25 and 250 per share, respectively
                                                                         275,000,000            
      common stock .01 par value per share, 150,000,000 shares authorized; 75,144,184 and 74,431,787 shares issued at september 30, 2007 and december 31, 2006, respectively
                                                                         751,000            
      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           
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 series 5 and 800,000 series 3 and 4 shares issued and outstanding at both june 30, 2007 and december 31, 2006 with liquidation preferences of 25 and 250 per share, respectively
                                                                          275,000,000           
      common stock .01 par value per share, 150,000,000 shares authorized; 74,997,973 and 74,431,787 shares issued at june 30, 2007 and december 31, 2006, respectively
                                                                          750,000           
      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          
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 series 5 and 800,000 series 3 and 4 shares issued and outstanding at both march 31, 2007 and december 31, 2006 with liquidation preferences of 25 and 250 per share, respectively
                                                                           275,000,000          
      common stock .01 par value per share, 150,000,000 shares authorized; 74,701,025 and 74,431,787 shares issued at march 31, 2007 and december 31, 2006, respectively
                                                                           747,000          
      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         
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at both december 31, 2006 and 2005 with liquidation preferences of 25 and 250 per share, respectively
                                                                            275,000,000         
      common stock .01 par value per share, 150,000,000 shares authorized; 74,431,787 and 73,263,472 shares issued at december 31, 2006 and 2005, respectively
                                                                            744,000         
      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    810,000 
      income before minority interests
                                                                            165,727,000 45,321,000 40,054,000 41,582,000 111,517,000 21,112,000 38,275,000 31,990,000 135,613,000 
      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        
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at both september 30, 2006 and december 31, 2005 with liquidation preferences of 25 and 250 per share, respectively
                                                                             275,000,000        
      common stock .01 par value per share, 150,000,000 shares authorized; 74,275,770 and 73,263,472 shares issued at september 30, 2006 and december 31, 2005, respectively
                                                                             743,000        
      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       
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at both june 30, 2006 and december 31, 2005 with liquidation preferences of 25 and 250 per share, respectively
                                                                              275,000,000       
      common stock .01 par value per share, 150,000,000 shares authorized; 74,101,176 and 73,263,472 shares issued at june 30, 2006 and december 31, 2005, respectively
                                                                              741,000       
      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      
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at both march 31, 2006 and december 31, 2005 with liquidation preferences of 25 and 250 per share, respectively
                                                                               275,000,000      
      common stock .01 par value per share, 150,000,000 shares authorized; 73,814,374 and 73,263,472 shares issued at march 31, 2006 and december 31, 2005, respectively
                                                                               738,000      
      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     
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at december 31, 2005 with liquidation preferences of 25 and 250 per share, respectively; 800,000 shares issued and outstanding at december 31, 2004, liquidation preference of 250
                                                                                275,000,000     
      common stock .01 par value per share, 150,000,000 shares authorized; 73,263,472 and 67,970,538 shares issued at december 31, 2005 and 2004, respectively
                                                                                733,000     
      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 12,164,000 13,280,000 14,172,000 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 3,000,000 and 800,000 shares issued and outstanding at september 30, 2005 with liquidation preferences of 25 and 250 per share, respectively; 800,000 shares issued and outstanding at december 31, 2004, liquidation preference of 250
                                                                                 275,000,000    
      common stock .01 par value per share, 150,000,000 shares authorized; 73,165,619 and 67,970,538 shares issued at september 30, 2005 and december 31, 2004, respectively
                                                                                 732,000    
      interest expense, net of interest income of 627 and 886 in 2005 and 2004, respectively
                                                                                 22,956,000    
      tenant receivables, net of allowance for uncollectible accounts of 3,694 and 3,393 at june 30, 2005 and december 31, 2004, respectively
                                                                                  57,640,000   
      deferred costs, less accumulated amortization of 29,046 and 25,735 at june 30, 2005 and december 31, 2004, respectively
                                                                                  39,783,000   
      bridge loan
                                                                                  275,000,000   
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 800,000 shares issued and outstanding at june 30, 2005 and december 31, 2004, liquidation preference 250 per share
                                                                                  200,000,000   
      common stock .01 par value per share, 150,000,000 shares authorized; 68,563,514 and 67,970,538 shares issued at june 30, 2005 and december 31, 2004, respectively
                                                                                  686,000   
      interest expense, net of interest income of 543 and 880 in 2005 and 2004, respectively
                                                                                  22,317,000   
      tenant receivables, net of allowance for uncollectible accounts of 3,683 and 3,393 at march 31, 2005 and december 31, 2004, respectively
                                                                                   50,051,000  
      deferred costs, less accumulated amortization of 27,751 and 25,735 at march 31, 2005 and december 31, 2004, respectively
                                                                                   40,502,000  
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 800,000 shares issued and outstanding at march 31, 2005 and december 31, 2004, liquidation preference 250 per share
                                                                                   200,000,000  
      common stock .01 par value per share, 150,000,000 shares authorized; 68,390,396 and 67,970,538 shares issued at march 31, 2005 and december 31, 2004, respectively
                                                                                   684,000  
      management fees and commissions
                                                                                   3,318,000 10,663,000 
      interest expense, net of interest income of 505 and 837 in 2005 and 2004, respectively
                                                                                   21,076,000  
      tenant receivables, net of allowance for uncollectible accounts of 3,393 and 3,353 at december 31, 2004 and 2003, respectively
                                                                                    60,911,000 
      deferred costs, less accumulated amortization of 25,735 and 29,493 at december 31, 2004 and 2003, respectively
                                                                                    41,002,000 
      preferred stock, .01 par value per share, 30,000,000 shares authorized; 800,000 and 300,000 shares issued and outstanding at december 31, 2004 and 2003, respectively, liquidation preference 250 per share
                                                                                    200,000,000 
      common stock .01 par value per share, 150,000,000 shares authorized; 67,970,538 and 64,956,077 shares issued at december 31, 2004 and 2003, respectively
                                                                                    680,000 
      interest expense, net of interest income of 3,128, 2,357, and 2,333 in 2004, 2003 and 2002, respectively
                                                                                    81,196,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.