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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Segment Reporting |  |  |  |  |
Total revenue |  | $ 475,360 | $ 430,525 | $ 1,375,187 | $ 1,244,407
NOI |  | 323,040 | 290,425 | 934,463 | 830,537
Gross real estate assets held for sale |  |  | 245,060 |  | 245,060
Continuing Operations |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 474,007 | 423,621 | 1,369,025 | 1,216,908
NOI |  | $ 323,040 | $ 290,425 | $ 934,463 | $ 830,537
% NOI change from prior year |  | 11.20% | 13.60% | 12.50% | 16.50%
Gross real estate | [1] | $ 19,002,878 | $ 17,285,687 | $ 19,002,878 | $ 17,285,687
Continuing Operations | Operating Segments | Established |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 356,163 | 331,805 | 1,043,282 | 712,871
NOI |  | $ 247,643 | $ 230,509 | $ 727,387 | $ 497,137
% NOI change from prior year |  | 5.10% | 5.50% | 5.10% | 3.00%
Gross real estate |  | $ 12,495,778 | $ 7,432,186 | $ 12,495,778 | $ 7,432,186
Continuing Operations | Operating Segments | Established | New England [Member] |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 50,377 | 46,788 | 147,138 | 133,732
NOI |  | $ 32,202 | $ 30,258 | $ 91,026 | $ 85,123
% NOI change from prior year |  | 3.10% | 4.60% | 0.60% | 0.90%
Gross real estate |  | $ 1,487,944 | $ 1,363,271 | $ 1,487,944 | $ 1,363,271
Continuing Operations | Operating Segments | Established | Metro NY/NJ |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 98,585 | 93,905 | 289,288 | 231,259
NOI |  | $ 68,973 | $ 65,839 | $ 201,962 | $ 161,879
% NOI change from prior year |  | 3.70% | 3.80% | 3.20% | 2.40%
Gross real estate |  | $ 3,196,771 | $ 2,297,417 | $ 3,196,771 | $ 2,297,417
Continuing Operations | Operating Segments | Established | Mid-Atlantic |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 52,839 | 47,122 | 156,806 | 73,964
NOI |  | $ 36,157 | $ 32,284 | $ 108,125 | $ 51,947
% NOI change from prior year |  | 0.30% | (2.20%) | (0.40%) | (3.30%)
Gross real estate |  | $ 2,172,951 | $ 645,872 | $ 2,172,951 | $ 645,872
Continuing Operations | Operating Segments | Established | Pacific Northwest |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 19,493 | 16,744 | 57,029 | 40,437
NOI |  | $ 13,502 | $ 11,668 | $ 40,532 | $ 28,104
% NOI change from prior year |  | 5.10% | 9.40% | 7.30% | 6.30%
Gross real estate |  | $ 720,223 | $ 499,611 | $ 720,223 | $ 499,611
Continuing Operations | Operating Segments | Established | Northern California |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 69,850 | 64,120 | 202,508 | 129,560
NOI |  | $ 53,095 | $ 48,805 | $ 155,464 | $ 99,030
% NOI change from prior year |  | 9.50% | 12.20% | 10.80% | 7.80%
Gross real estate |  | $ 2,412,264 | $ 1,401,286 | $ 2,412,264 | $ 1,401,286
Continuing Operations | Operating Segments | Established | Southern California |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 65,019 | 63,126 | 190,513 | 103,919
NOI |  | $ 43,714 | $ 41,655 | $ 130,278 | $ 71,054
% NOI change from prior year |  | 7.90% | 6.80% | 9.10% | 4.50%
Gross real estate |  | $ 2,505,625 | $ 1,224,729 | $ 2,505,625 | $ 1,224,729
Continuing Operations | Operating Segments | Other Stabilized |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 56,571 | 45,003 | 165,335 | 370,569
NOI |  | 36,930 | 31,926 | 108,283 | 255,350
Gross real estate |  | 2,106,947 | 6,003,229 | 2,106,947 | 6,003,229
Continuing Operations | Operating Segments | Development / Redevelopment |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 59,112 | 44,310 | 152,694 | 125,215
NOI |  | 38,467 | 27,990 | 98,793 | 78,050
Gross real estate |  | 3,795,868 | 3,639,770 | 3,795,868 | 3,639,770
Continuing Operations | Land Held for Future Development |  |  |  |  |
Segment Reporting |  |  |  |  |
Gross real estate |  | 553,729 | 176,484 | 553,729 | 176,484
Continuing Operations | Non-allocated |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue | [2] | 2,161 | 2,503 | 7,714 | 8,253
Gross real estate |  | $ 50,556 | $ 34,018 | $ 50,556 | $ 34,018
[1] | Does not include gross real estate assets held for sale of $245,060 as of
[2] | (2)Revenue represents third-party management, asset management and developer fees and miscellaneous income which are not allocated to a reportable segment.

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