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Investments in Real Estate Entities (Details 4) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | $ 15,270 | $ 70,744 | $ 64,962
Gain on sale of communities | 54,202 | 136,333 | 196,749
Fund I |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 0 | 0 | 87
Fund II |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 843 | 53,961 | 49,882
Equity in income of unconsolidated entities relating to the Company's recognition of promoted interest | 925 | 26,472 | 7,985
Gain on sale of communities |  | 26,322 | 41,501
US Fund |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 9,766 | 14,773 | 15,635
Gain on sale of communities | 8,636 | 13,788 |
ACJV |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 3,527 | 1,388 | 1,445
Gain on sale of communities | 2,019 |  |
MVPI LLC |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 1,917 | 1,833 | 1,627
Equity in income of unconsolidated entities relating to the Company's recognition of promoted interest |  |  | 16,568
Brandywine |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 95 | 106 | 10
CVP I, LLC |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 0 | 0 | 9
Residual JV |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | (879) | (1,223) | (1,374)
Avalon Clarendon |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 0 | 0 | (2,359)
AVA North Point |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 305 | (122) | 0
Sudbury |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | 29 | 28 | 0
NYC JV |  |  |
Summary of the Company's equity in income of unconsolidated entities |  |  |
Equity in income of unconsolidated real estate entities | $ (333) | $ 0 | $ 0

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