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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Segment Reporting |  |  |  |  |
Total revenue |  | $ 457,459 | $ 413,806 | $ 899,826 | $ 813,881
NOI |  | 314,014 | 277,548 | 611,423 | 540,111
Gross real estate assets held for sale |  | 79,128 | 244,805 | 79,128 | 244,805
Continuing Operations |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 455,174 | 403,580 | 895,017 | 793,286
NOI |  | $ 314,014 | $ 277,548 | $ 611,423 | $ 540,111
% NOI change from prior year |  | 13.10% | 8.90% | 13.20% | 18.10%
Gross real estate | [1] | $ 18,611,288 | $ 16,960,426 | $ 18,611,288 | $ 16,960,426
Continuing Operations | Operating Segments | Established |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 346,995 | 325,467 | 687,118 | 470,937
NOI |  | $ 244,141 | $ 227,093 | $ 479,744 | $ 328,337
% NOI change from prior year |  | 5.00% | 2.90% | 5.10% | 2.60%
Gross real estate |  | $ 12,471,582 | $ 7,413,467 | $ 12,471,582 | $ 7,413,467
Continuing Operations | Operating Segments | Established | New England [Member] |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 49,000 | 45,523 | 96,760 | 88,125
NOI |  | $ 30,985 | $ 29,179 | $ 58,823 | $ 55,620
% NOI change from prior year |  | 2.30% | (0.90%) | (0.70%) | (1.00%)
Gross real estate |  | $ 1,477,145 | $ 1,356,000 | $ 1,477,145 | $ 1,356,000
Continuing Operations | Operating Segments | Established | Metro NY/NJ |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 96,372 | 92,325 | 190,704 | 152,906
NOI |  | $ 67,880 | $ 64,724 | $ 132,989 | $ 106,780
% NOI change from prior year |  | 2.90% | 0.90% | 2.90% | 1.70%
Gross real estate |  | $ 3,191,141 | $ 2,294,169 | $ 3,191,141 | $ 2,294,169
Continuing Operations | Operating Segments | Established | Mid-Atlantic |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 52,263 | 46,990 | 103,967 | 49,260
NOI |  | $ 35,938 | $ 32,531 | $ 71,969 | $ 34,784
% NOI change from prior year |  | (0.90%) | (6.70%) | (0.80%) | (3.90%)
Gross real estate |  | $ 2,170,822 | $ 645,172 | $ 2,170,822 | $ 645,172
Continuing Operations | Operating Segments | Established | Pacific Northwest |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 19,047 | 16,458 | 37,536 | 26,683
NOI |  | $ 13,657 | $ 11,554 | $ 27,030 | $ 18,591
% NOI change from prior year |  | 7.90% | 5.90% | 8.40% | 4.80%
Gross real estate |  | $ 719,366 | $ 499,383 | $ 719,366 | $ 499,383
Continuing Operations | Operating Segments | Established | Northern California |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 67,144 | 62,319 | 132,658 | 85,305
NOI |  | $ 52,635 | $ 47,498 | $ 102,369 | $ 65,364
% NOI change from prior year |  | 11.70% | 13.70% | 11.60% | 9.60%
Gross real estate |  | $ 2,409,781 | $ 1,400,573 | $ 2,409,781 | $ 1,400,573
Continuing Operations | Operating Segments | Established | Southern California |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 63,169 | 61,852 | 125,493 | 68,658
NOI |  | $ 43,046 | $ 41,607 | $ 86,564 | $ 47,198
% NOI change from prior year |  | 6.70% | 5.00% | 9.80% | 4.50%
Gross real estate |  | $ 2,503,327 | $ 1,218,170 | $ 2,503,327 | $ 1,218,170
Continuing Operations | Operating Segments | Other Stabilized |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 54,681 | 43,701 | 108,764 | 244,289
NOI |  | 36,536 | 31,289 | 71,353 | 167,494
Gross real estate |  | 2,028,096 | 5,998,737 | 2,028,096 | 5,998,737
Continuing Operations | Operating Segments | Development / Redevelopment |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue |  | 50,556 | 31,740 | 93,582 | 72,310
NOI |  | 33,337 | 19,166 | 60,326 | 44,280
Gross real estate |  | 3,581,408 | 3,318,362 | 3,581,408 | 3,318,362
Continuing Operations | Land Held for Future Development |  |  |  |  |
Segment Reporting |  |  |  |  |
Gross real estate |  | 487,205 | 195,673 | 487,205 | 195,673
Continuing Operations | Non-allocated |  |  |  |  |
Segment Reporting |  |  |  |  |
Total revenue | [2] | 2,942 | 2,672 | 5,553 | 5,750
Gross real estate |  | $ 42,997 | $ 34,187 | $ 42,997 | $ 34,187
[1] | Does not include gross real estate assets held for sale of $79,128 and $244,805 as of June 30, 2015 and 2014, respectively.
[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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