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Consolidated Balance Sheets (UNITED DOMINION REALTY, L.P) (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Real estate under development accumulated depreciation | $ 0 | $ 0
United Dominion Reality L.P. [Member] |  |
Real estate under development accumulated depreciation | $ 0 | $ 0
Partners' Capital: |  |
OP units outstanding related to general partner | 110,883 | 110,883
OP units outstanding related to limited partner | 183,167,815 | 183,167,815

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