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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting |  |
Real Estate Held-For-Sale, Gross | $ 41,866 |
Total revenue | 601,651 | $ 566,184
NOI | 424,535 | 394,917
Gross real estate | 23,708,068 | 22,262,363
Operating Segments | Established |  |
Segment Reporting |  |
Total revenue | 547,956 | 531,829
NOI | 391,645 | 380,337
Gross real estate | 19,377,124 | 19,183,244
Operating Segments | Established | New England |  |
Segment Reporting |  |
Total revenue | 81,669 | 78,688
NOI | 53,680 | 52,083
Gross real estate | 2,765,270 | 2,717,130
Operating Segments | Established | Metro NY/NJ |  |
Segment Reporting |  |
Total revenue | 120,731 | 118,377
NOI | 84,484 | 82,984
Gross real estate | 4,343,033 | 4,311,202
Operating Segments | Established | Mid-Atlantic |  |
Segment Reporting |  |
Total revenue | 91,717 | 88,370
NOI | 66,309 | 62,916
Gross real estate | 3,545,582 | 3,507,734
Operating Segments | Established | Pacific Northwest |  |
Segment Reporting |  |
Total revenue | 28,736 | 27,802
NOI | 20,838 | 20,210
Gross real estate | 991,802 | 986,190
Operating Segments | Established | Northern California |  |
Segment Reporting |  |
Total revenue | 104,360 | 101,261
NOI | 80,451 | 78,715
Gross real estate | 3,268,787 | 3,248,903
Operating Segments | Established | Southern California |  |
Segment Reporting |  |
Total revenue | 114,810 | 111,466
NOI | 82,455 | 79,916
Gross real estate | 4,142,235 | 4,092,527
Operating Segments | Established | Expansion Markets [Member] |  |
Segment Reporting |  |
Total revenue | 5,933 | 5,865
NOI | 3,428 | 3,513
Gross real estate | 320,415 | 319,558
Operating Segments | Other Stabilized |  |
Segment Reporting |  |
Total revenue | 35,491 | 22,027
NOI | 23,496 | 14,729
Gross real estate | 1,591,348 | 1,171,127
Operating Segments | Development / Redevelopment |  |
Segment Reporting |  |
Total revenue | 15,773 | 549
NOI | 9,394 | (149)
Gross real estate | 2,220,386 | 1,130,302
Operating Segments | Disposals [Member] |  |
Segment Reporting |  |
Gross real estate |  | 285,943
Land Held for Future Development |  |
Segment Reporting |  |
Gross real estate | 38,115 | 104,963
Non-allocated |  |
Segment Reporting |  |
Total revenue | 1,007 | 1,139
Gross real estate | 481,095 | 672,727
Continuing Operations |  |
Segment Reporting |  |
Total revenue | 600,227 | 555,544
Continuing Operations | Operating Segments | Established |  |
Segment Reporting |  |
Total revenue | 547,956 | 531,829
Continuing Operations | Operating Segments | Other Stabilized |  |
Segment Reporting |  |
Total revenue | 35,491 | 22,027
Continuing Operations | Non-allocated |  |
Segment Reporting |  |
Total revenue | $ 1,007 | $ 1,139

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