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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting |  |  |  |
Total revenue | $ 502,307 | $ 457,459 | $ 1,010,804 | $ 899,826
NOI | $ 347,776 | $ 310,990 | $ 705,237 | $ 605,402
% NOI change from prior year | 11.80% | 13.30% | 16.50% | 13.40%
Gross real estate | $ 19,972,681 | $ 18,611,288 | $ 19,972,681 | $ 18,611,288
Gross real estate assets held for sale | 77,943 | 79,128 | 77,943 | 79,128
Avalon at Edgewater [Member] |  |  |  |
Segment Reporting |  |  |  |
Gain on Business Interruption Insurance Recovery |  |  | 20,306 |
Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 379,853 | 341,990 | 753,805 | 677,211
NOI | $ 267,278 | $ 241,087 | $ 530,808 | $ 473,670
% NOI change from prior year | 5.00% | 5.10% | 6.40% | 5.20%
Gross real estate | $ 13,147,734 | $ 12,471,582 | $ 13,147,734 | $ 12,471,582
Operating Segments | Established | New England [Member] |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 58,069 | 45,162 | 115,410 | 89,168
NOI | $ 37,170 | $ 28,663 | $ 73,840 | $ 54,224
% NOI change from prior year | 2.70% | 2.80% | 8.90% | (0.50%)
Gross real estate | $ 1,841,109 | $ 1,477,145 | $ 1,841,109 | $ 1,477,145
Operating Segments | Established | Metro NY/NJ |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 89,895 | 95,205 | 177,684 | 188,389
NOI | $ 61,951 | $ 67,148 | $ 121,715 | $ 131,514
% NOI change from prior year | 2.30% | 2.90% | 2.80% | 2.90%
Gross real estate | $ 2,889,770 | $ 3,191,141 | $ 2,889,770 | $ 3,191,141
Operating Segments | Established | Mid-Atlantic |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 58,464 | 52,263 | 115,994 | 103,967
NOI | $ 40,530 | $ 35,938 | $ 80,593 | $ 71,969
% NOI change from prior year | 2.50% | (0.90%) | 1.90% | (0.80%)
Gross real estate | $ 2,331,290 | $ 2,170,822 | $ 2,331,290 | $ 2,170,822
Operating Segments | Established | Pacific Northwest |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 22,181 | 19,047 | 43,764 | 37,536
NOI | $ 15,843 | $ 13,657 | $ 31,588 | $ 27,030
% NOI change from prior year | 5.60% | 7.90% | 6.20% | 8.40%
Gross real estate | $ 795,977 | $ 719,366 | $ 795,977 | $ 719,366
Operating Segments | Established | Northern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 79,632 | 67,144 | 158,084 | 132,658
NOI | $ 60,850 | $ 52,635 | $ 121,097 | $ 102,369
% NOI change from prior year | 6.80% | 11.70% | 9.10% | 11.60%
Gross real estate | $ 2,653,785 | $ 2,409,781 | $ 2,653,785 | $ 2,409,781
Operating Segments | Established | Southern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 71,612 | 63,169 | 142,869 | 125,493
NOI | $ 50,934 | $ 43,046 | $ 101,975 | $ 86,564
% NOI change from prior year | 10.30% | 6.70% | 10.10% | 9.80%
Gross real estate | $ 2,635,803 | $ 2,503,327 | $ 2,635,803 | $ 2,503,327
Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 58,511 | 54,679 | 134,933 | 108,755
NOI | 38,593 | 36,566 | 97,197 | 71,406
Gross real estate | 2,166,893 | 2,028,096 | 2,166,893 | 2,028,096
Operating Segments | Development / Redevelopment |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 60,460 | 50,556 | 113,711 | 93,582
NOI | 41,905 | 33,337 | 77,232 | 60,326
Gross real estate | 4,065,071 | 3,581,408 | 4,065,071 | 3,581,408
Land Held for Future Development |  |  |  |
Segment Reporting |  |  |  |
Gross real estate | 511,797 | 487,205 | 511,797 | 487,205
Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 1,467 | 2,942 | 2,990 | 5,553
Gross real estate | 81,186 | 42,997 | 81,186 | 42,997
Continuing Operations |  |  |  |
Segment Reporting |  |  |  |
Total revenue | $ 500,291 | $ 450,167 | $ 1,005,439 | $ 885,101

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