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Commitments and Contingencies (UNITED DOMINION REALTY, L.P.) (Tables) | 12 Months Ended
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Dec. 31, 2015
Entity Information [Line Items] |
Summary of real estate commitments | The following summarizes the Company’s real estate commitments at December 31, 2015 (dollars in thousands):
| Number of Properties |  | Costs Incurred to Date (a) |  | Expected Costs to Complete (unaudited) |  | Average Ownership Stake
Wholly-owned — under development | 1 |  | $ | 124,072 |  | (b) | $ | 217,928 |  |  | 100 | %
Wholly-owned — redevelopment | 3 |  | 11,302 |  | (b) | 16,698 |  |  | 100 | %
Joint ventures: |  |  |  |  |  |  |
Unconsolidated joint ventures | 4 |  | 497,350 |  |  | 81,979 |  | (c) | Various |
Participating loan investments | 1 |  | 90,747 |  | (d) | 2,711 |  | (e) | 0 | %
Preferred equity investments | 5 |  | 136,327 |  | (f) | — |  |  | 48 | %
Total |  |  | $ | 859,798 |  |  | $ | 319,316 |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
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