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Reportable Segments - NOI from Our Rental Real Estate for Each Segment Specific to Continuing Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | $ 734,163 | $ 717,309 | $ 1,464,981 | $ 1,422,397 |
Operating expenses | 232,069 | 227,851 | 475,626 | 472,099 |
NOI | 502,094 | 489,458 | 989,355 | 950,298 |
Total Assets | 19,779,568 |  | 19,779,568 |  | $ 20,034,564
Capital Expenditures |  |  | 153,304 |  |
Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 718,169 | 697,784 | 1,432,565 | 1,383,857 |
Operating expenses | 224,525 | 218,681 | 455,437 | 446,721 |
NOI | 493,644 | 479,103 | 977,128 | 937,136 |
Total Assets | 18,199,960 |  | 18,199,960 |  |
Capital Expenditures |  |  | 139,687 |  |
Non-same store/other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 15,994 | 19,525 | 32,416 | 38,540 |
Operating expenses | 7,544 | 9,170 | 20,189 | 25,378 |
NOI | 8,450 | 10,355 | 12,227 | 13,162 |
Total Assets | 1,579,608 |  | 1,579,608 |  |
Capital Expenditures |  |  | 13,617 |  |
Los Angeles | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 120,119 | 116,295 | 239,386 | 229,783 |
Operating expenses | 35,778 | 35,264 | 73,603 | 72,575 |
NOI | 84,341 | 81,031 | 165,783 | 157,208 |
Total Assets | 2,455,957 |  | 2,455,957 |  |
Capital Expenditures |  |  | 24,700 |  |
Orange County | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 31,171 | 30,045 | 62,272 | 59,417 |
Operating expenses | 6,937 | 6,703 | 13,865 | 13,396 |
NOI | 24,234 | 23,342 | 48,407 | 46,021 |
Total Assets | 335,826 |  | 335,826 |  |
Capital Expenditures |  |  | 8,702 |  |
San Diego | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 25,991 | 24,691 | 51,815 | 48,925 |
Operating expenses | 5,780 | 5,736 | 11,659 | 11,550 |
NOI | 20,211 | 18,955 | 40,156 | 37,375 |
Total Assets | 336,372 |  | 336,372 |  |
Capital Expenditures |  |  | 8,283 |  |
Subtotal - Southern California | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 177,281 | 171,031 | 353,473 | 338,125 |
Operating expenses | 48,495 | 47,703 | 99,127 | 97,521 |
NOI | 128,786 | 123,328 | 254,346 | 240,604 |
Total Assets | 3,128,155 |  | 3,128,155 |  |
Capital Expenditures |  |  | 41,685 |  |
Washington D.C. | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 116,465 | 111,220 | 231,584 | 220,318 |
Operating expenses | 36,342 | 35,472 | 72,407 | 72,109 |
NOI | 80,123 | 75,748 | 159,177 | 148,209 |
Total Assets | 3,029,979 |  | 3,029,979 |  |
Capital Expenditures |  |  | 22,162 |  |
San Francisco | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 108,731 | 107,288 | 217,043 | 213,502 |
Operating expenses | 31,263 | 31,893 | 65,700 | 65,735 |
NOI | 77,468 | 75,395 | 151,343 | 147,767 |
Total Assets | 3,018,760 |  | 3,018,760 |  |
Capital Expenditures |  |  | 28,267 |  |
New York | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 122,172 | 119,785 | 246,136 | 237,830 |
Operating expenses | 50,045 | 47,649 | 101,320 | 97,137 |
NOI | 72,127 | 72,136 | 144,816 | 140,693 |
Total Assets | 3,240,380 |  | 3,240,380 |  |
Capital Expenditures |  |  | 12,363 |  |
Boston | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 82,081 | 78,851 | 162,532 | 155,729 |
Operating expenses | 22,988 | 22,034 | 46,726 | 46,197 |
NOI | 59,093 | 56,817 | 115,806 | 109,532 |
Total Assets | 2,051,119 |  | 2,051,119 |  |
Capital Expenditures |  |  | 12,924 |  |
Seattle | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 74,792 | 73,018 | 148,624 | 145,796 |
Operating expenses | 22,013 | 20,951 | 43,291 | 41,172 |
NOI | 52,779 | 52,067 | 105,333 | 104,624 |
Total Assets | 2,043,317 |  | 2,043,317 |  |
Capital Expenditures |  |  | 16,325 |  |
Denver | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 18,002 | 17,873 | 35,810 | 35,469 |
Operating expenses | 5,221 | 5,211 | 10,667 | 10,685 |
NOI | 12,781 | 12,662 | 25,143 | 24,784 |
Total Assets | 807,719 |  | 807,719 |  |
Capital Expenditures |  |  | 2,156 |  |
Other Expansion Markets | Same Store |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 18,645 | 18,718 | 37,363 | 37,088 |
Operating expenses | 8,158 | 7,768 | 16,199 | 16,165 |
NOI | 10,487 | 10,950 | 21,164 | 20,923 |
Total Assets | 880,531 |  | 880,531 |  |
Capital Expenditures |  |  | 3,805 |  |
Non-same store | Non-same store/other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 14,599 | 7,497 | 27,547 | 12,400 |
Operating expenses | 6,297 | 3,744 | 12,418 | 6,509 |
NOI | 8,302 | 3,753 | 15,129 | 5,891 |
Total Assets | 756,305 |  | 756,305 |  |
Capital Expenditures |  |  | 13,153 |  |
Other | Non-same store/other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Rental income | 1,395 | 12,028 | 4,869 | 26,140 |
Operating expenses | 1,247 | 5,426 | 7,771 | 18,869 |
NOI | 148 | $ 6,602 | (2,902) | $ 7,271 |
Total Assets | $ 823,303 |  | 823,303 |  |
Capital Expenditures |  |  | $ 464 |  |

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