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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting |  |  |  |
Total revenue | $ 516,211 | $ 475,360 | $ 1,527,015 | $ 1,375,187
NOI | $ 349,710 | $ 314,703 | $ 1,043,939 | $ 909,849
% NOI change from prior year | 11.10% | 11.50% | 14.70% | 12.80%
Gross real estate | $ 20,362,663 | $ 19,002,878 | $ 20,362,663 | $ 19,002,878
Gross real estate assets held for sale | 135,054 |  | 135,054 |
Avalon at Edgewater [Member] |  |  |  |
Segment Reporting |  |  |  |
Gain on Business Interruption Insurance Recovery |  |  | 20,306 |
Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 389,050 | 342,425 | 1,149,093 | 1,002,850
NOI | $ 271,574 | $ 239,286 | $ 805,774 | $ 702,699
% NOI change from prior year | 4.30% | 5.20% | 5.50% | 5.20%
Gross real estate | $ 13,448,763 | $ 12,495,778 | $ 13,448,763 | $ 12,495,778
Operating Segments | Established | New England [Member] |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 59,321 | 45,245 | 174,731 | 132,054
NOI | $ 37,657 | $ 29,036 | $ 111,497 | $ 81,883
% NOI change from prior year | 0.60% | 3.40% | 5.90% | 0.80%
Gross real estate | $ 1,845,679 | $ 1,487,944 | $ 1,845,679 | $ 1,487,944
Operating Segments | Established | Metro NY/NJ |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 96,231 | 92,153 | 283,554 | 270,406
NOI | $ 65,299 | $ 65,207 | $ 193,001 | $ 190,735
% NOI change from prior year | 1.50% | 3.80% | 2.00% | 3.10%
Gross real estate | $ 3,206,696 | $ 3,196,771 | $ 3,206,696 | $ 3,196,771
Operating Segments | Established | Mid-Atlantic |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 58,929 | 52,839 | 174,922 | 156,806
NOI | $ 40,029 | $ 36,157 | $ 120,623 | $ 108,125
% NOI change from prior year | 0.40% | 0.30% | 1.40% | (0.40%)
Gross real estate | $ 2,335,116 | $ 2,172,951 | $ 2,335,116 | $ 2,172,951
Operating Segments | Established | Pacific Northwest |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 20,216 | 17,319 | 59,333 | 50,563
NOI | $ 14,502 | $ 12,077 | $ 42,753 | $ 36,214
% NOI change from prior year | 9.50% | 5.00% | 6.60% | 8.00%
Gross real estate | $ 736,377 | $ 720,223 | $ 736,377 | $ 720,223
Operating Segments | Established | Northern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 80,783 | 69,850 | 238,867 | 202,508
NOI | $ 61,560 | $ 53,095 | $ 182,658 | $ 155,464
% NOI change from prior year | 5.90% | 9.50% | 8.00% | 10.80%
Gross real estate | $ 2,657,020 | $ 2,412,264 | $ 2,657,020 | $ 2,412,264
Operating Segments | Established | Southern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 73,570 | 65,019 | 217,686 | 190,513
NOI | $ 52,527 | $ 43,714 | $ 155,242 | $ 130,278
% NOI change from prior year | 11.10% | 7.90% | 10.30% | 9.10%
Gross real estate | $ 2,667,875 | $ 2,505,625 | $ 2,667,875 | $ 2,505,625
Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 53,905 | 56,564 | 177,016 | 165,319
NOI | 34,812 | 36,949 | 125,017 | 108,355
Gross real estate | 2,325,539 | 2,106,947 | 2,325,539 | 2,106,947
Operating Segments | Development / Redevelopment |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 63,122 | 59,112 | 164,865 | 152,694
NOI | 43,324 | 38,468 | 113,148 | 98,795
Gross real estate | 3,994,361 | 3,795,868 | 3,994,361 | 3,795,868
Land Held for Future Development |  |  |  |
Segment Reporting |  |  |  |
Gross real estate | 519,626 | 553,729 | 519,626 | 553,729
Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 1,320 | 2,161 | 4,310 | 7,714
Gross real estate | 74,374 | 50,556 | 74,374 | 50,556
Continuing Operations |  |  |  |
Segment Reporting |  |  |  |
Total revenue | $ 507,397 | $ 460,262 | $ 1,495,284 | $ 1,328,577

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