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Segment Reporting (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Segment Reporting |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) |  | $ 3,576 |  | $ 7,611
Total revenue | $ 577,263 | 569,239 | $ 1,143,446 | 1,130,032
NOI | 403,675 | 378,406 | 802,215 | 746,306
Gross real estate | 22,841,879 | 21,193,326 | 22,841,879 | 21,193,326
Gross real estate assets held for sale | 77,030 |  | 77,030 |
Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 457,799 | 443,586 | 909,987 | 880,418
NOI | 326,774 | 317,836 | 652,620 | 628,436
Gross real estate | 15,676,978 | 15,600,326 | 15,676,978 | 15,600,326
Operating Segments | Established | New England |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 63,819 | 62,110 | 127,092 | 123,318
NOI | 41,907 | 40,750 | 83,715 | 80,441
Gross real estate | 2,118,237 | 2,109,273 | 2,118,237 | 2,109,273
Operating Segments | Established | Metro NY/NJ |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 103,073 | 99,745 | 204,276 | 197,774
NOI | 73,212 | 70,412 | 145,055 | 139,429
Gross real estate | 3,531,694 | 3,518,123 | 3,531,694 | 3,518,123
Operating Segments | Established | Mid-Atlantic |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 73,094 | 71,099 | 145,103 | 140,868
NOI | 51,073 | 49,917 | 102,125 | 98,772
Gross real estate | 2,674,020 | 2,662,775 | 2,674,020 | 2,662,775
Operating Segments | Established | Pacific Northwest |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 28,224 | 26,894 | 56,026 | 53,381
NOI | 20,605 | 19,142 | 40,815 | 37,766
Gross real estate | 987,121 | 984,029 | 987,121 | 984,029
Operating Segments | Established | Northern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 88,301 | 85,559 | 175,661 | 169,983
NOI | 67,384 | 66,133 | 135,622 | 130,946
Gross real estate | 2,776,718 | 2,764,856 | 2,776,718 | 2,764,856
Operating Segments | Established | Southern California |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 101,288 | 98,179 | 201,829 | 195,094
NOI | 72,593 | 71,482 | 145,288 | 141,082
Gross real estate | 3,589,188 | 3,561,270 | 3,589,188 | 3,561,270
Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 75,696 | 59,134 | 148,371 | 114,894
NOI | 50,813 | 38,776 | 100,024 | 75,000
Gross real estate | 3,327,804 | 2,764,061 | 3,327,804 | 2,764,061
Operating Segments | Development / Redevelopment |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 40,063 | 31,965 | 75,643 | 63,411
NOI | 26,088 | 21,794 | 49,571 | 42,870
Gross real estate | 3,719,999 | 2,618,434 | 3,719,999 | 2,618,434
Operating Segments | Disposals [Member] |  |  |  |
Segment Reporting |  |  |  |
Gross real estate |  | 1,153,352 |  | 1,153,352
Land Held for Future Development |  |  |  |
Segment Reporting |  |  |  |
Gross real estate | 18,606 | 130,802 | 18,606 | 130,802
Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 1,114 | 954 | 2,252 | 1,841
Gross real estate | 98,492 | 79,703 | 98,492 | 79,703
Continuing Operations |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 574,672 | 535,639 | 1,136,253 | 1,060,564
Continuing Operations | Operating Segments | Established |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 457,799 | 443,586 | 909,987 | 880,418
Continuing Operations | Operating Segments | Other Stabilized |  |  |  |
Segment Reporting |  |  |  |
Total revenue | 75,696 | 59,134 | 148,371 | 114,894
Continuing Operations | Non-allocated |  |  |  |
Segment Reporting |  |  |  |
Total revenue | $ 1,114 | $ 954 | $ 2,252 | $ 1,841

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