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Real Estate Owned (UNITED DOMINION REALTY, L.P.) Real Estate Owned (UNITED DOMINION REALTY, L.P.) (Details 2) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Real Estate Investment Property, at Cost | $ 9,053,599 | $ 8,205,627 |  |
Real estate held for investment, net | 6,407,555 | 5,770,855 |  |
Cash and Cash Equivalents, at Carrying Value | 6,742 | 15,224 | $ 30,249 | $ 12,115
Other Assets | 137,302 | 110,082 |  |
Assets | 7,663,844 | 6,828,728 |  |
Secured debt, net | 1,376,945 | 1,354,321 |  |
Taxes Payable | 18,786 | 15,978 |  |
Accounts payable, accrued expenses, and other liabilities | (81,356) | (91,282) |  |
Liabilities | 3,816,797 | 3,810,298 |  |
United Dominion Reality L.P. |  |  |  |
Real Estate Investment Property, at Cost | 3,630,905 | 4,238,770 |  |
Cash and Cash Equivalents, at Carrying Value | 3,103 | 502 | 1,897 | $ 2,804
Other Assets | 24,528 | 24,029 |  |
Assets | 2,554,808 | 2,873,809 |  |
Secured debt, net | 475,964 | 927,484 |  |
Taxes Payable | 2,775 | 7,061 |  |
Accounts payable, accrued expenses, and other liabilities | (12,964) | (22,436) |  |
Liabilities | 833,478 | 1,139,758 |  |
UDR Lighthouse DownREIT L.P. [Member] | United Dominion Reality L.P. |  |  |  |
Real Estate Investment Property, at Cost | (628,479) | 0 | 0 |
Real Estate Owned, Accumulated Depreciation | 223,363 | 0 | 0 |
Real estate held for investment, net | (405,116) | $ 0 | $ 0 |
Cash and Cash Equivalents, at Carrying Value | (140) |  |  |
Other Assets | (1,680) |  |  |
Assets | (406,936) |  |  |
Secured debt, net | (228,390) |  |  |
Taxes Payable | (4,123) |  |  |
Accounts payable, accrued expenses, and other liabilities | (5,781) |  |  |
Liabilities | $ (238,294) |  |  |

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