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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Segment Reporting |  |  |  |
Total revenue | $ 569,239 | $ 530,512 | $ 1,130,032 | $ 1,052,837
NOI | 393,486 | 358,410 | 776,625 | 710,613
Gross real estate | 22,179,431 | 21,088,796 | 22,179,431 | 21,088,796
Gross real estate assets held for sale | 167,247 | 15,271 | 167,247 | 15,271
Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 420,557 | 410,088 | 836,330 | 816,097
NOI | 299,075 | 290,737 | 592,997 | 581,056
Gross real estate | 14,490,980 | 14,317,058 | 14,490,980 | 14,317,058
Operating Segments | Established | New England |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 58,571 | 57,137 | 116,480 | 113,483
NOI | 38,354 | 36,762 | 75,997 | 73,733
Gross real estate | 1,977,465 | 1,962,635 | 1,977,465 | 1,962,635
Operating Segments | Established | Metro NY/NJ |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 105,246 | 103,694 | 209,342 | 206,077
NOI | 72,913 | 72,027 | 144,835 | 143,323
Gross real estate | 3,726,001 | 3,612,725 | 3,726,001 | 3,612,725
Operating Segments | Established | Mid-Atlantic |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 60,192 | 59,104 | 119,351 | 117,819
NOI | 41,759 | 40,331 | 82,826 | 81,314
Gross real estate | 2,236,706 | 2,225,022 | 2,236,706 | 2,225,022
Operating Segments | Established | Pacific Northwest |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 21,352 | 20,825 | 42,594 | 41,302
NOI | 15,234 | 15,010 | 30,072 | 29,940
Gross real estate | 726,279 | 722,654 | 726,279 | 722,654
Operating Segments | Established | Northern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 91,487 | 89,133 | 181,913 | 177,517
NOI | 70,342 | 68,608 | 139,400 | 136,437
Gross real estate | 2,978,830 | 2,961,569 | 2,978,830 | 2,961,569
Operating Segments | Established | Southern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 83,709 | 80,195 | 166,650 | 159,899
NOI | 60,473 | 57,999 | 119,867 | 116,309
Gross real estate | 2,845,699 | 2,832,453 | 2,845,699 | 2,832,453
Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 68,968 | 49,298 | 136,703 | 92,959
NOI | 47,264 | 32,019 | 92,650 | 59,438
Gross real estate | 2,833,892 | 2,400,217 | 2,833,892 | 2,400,217
Operating Segments | Development / Redevelopment |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 71,982 | 54,890 | 139,917 | 108,285
NOI | 47,147 | 35,654 | 90,978 | 70,119
Gross real estate | 4,625,227 | 3,634,897 | 4,625,227 | 3,634,897
Operating Segments | Disposals [Member] |  |  |  |
Segment Reporting |  |  |  |
Gross real estate |  | 556,331 |  | 556,331
Land Held for Future Development |  |  |  |
Segment Reporting |  |  |  |
Gross real estate | 130,802 | 86,016 | 130,802 | 86,016
Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 954 | 1,098 | 1,841 | 2,298
Gross real estate | 98,530 | 94,277 | 98,530 | 94,277
Continuing Operations |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 562,461 | 515,374 | 1,114,791 | 1,019,639
Continuing Operations | Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 420,557 | 410,088 | 836,330 | 816,097
Continuing Operations | Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 68,968 | 49,298 | 136,703 | 92,959
Continuing Operations | Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | $ 954 | $ 1,098 | $ 1,841 | $ 2,298

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