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v3.3.1.900

Related Party Transactions (UNITED DOMINION REALTY, L.P.) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jan. 31, 2014
Related Party Transaction [Line Items] |  |  |  |  |
Related party management fees | $ 17,700 | $ 12,700 | $ 12,300 |  |
United Dominion Reality L.P. |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Net receivable balances from General Partner | $ 11,270 | (13,624) |  |  |
Related party management fee percentage | 2.75% |  |  |  |
Notes payable due to General Partner | $ 273,334 | 88,696 |  |  |
United Dominion Reality L.P. | Taxable REIT Subsidiaries |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party management fee percentage | 2.75% |  |  |  |
United Dominion Reality L.P. | UDR, Inc. |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
General and administrative expenses allocated to the Operating Partnership by UDR | $ 21,000 | $ 27,400 | $ 23,500 |  |
United Dominion Reality L.P. | UDR, Inc. | Bottom Dollar guaranty |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party guaranty note payable interest rate |  | 5.18% |  |  | 5.18%
Notes payable due to General Partner | 83,200 | $ 83,300 |  |  |
United Dominion Reality L.P. | UDR, Inc. | Guaranty related to community acquisition |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Notes payable due to General Partner | 5,500 | $ 5,500 |  |  |
Number of OP Units issued as consideration for acquisition guaranteed by related party note payable (in shares) |  |  |  | 1,802,239 |
United Dominion Reality L.P. | UDR, Inc. | Note for 184.6 million [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Notes payable due to General Partner | $ 184,600 |  |  |  |
Note for 83.2 million [Member] | United Dominion Reality L.P. | UDR, Inc. | Guaranty related to community acquisition |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party guaranty note payable interest rate | 5.18% |  |  |  |
Note for 5 million [Member] | United Dominion Reality L.P. | UDR, Inc. | Guaranty related to community acquisition |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party guaranty note payable interest rate | 5.34% |  |  |  |
Note for 184.6 million [Member] | United Dominion Reality L.P. | UDR, Inc. | Guaranty related to community acquisition |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party guaranty note payable interest rate | 4.12% |  |  |  |

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