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Investments In Unconsolidated Joint Ventures (Crystal House Apartments Investors LLC) (Narrative) (Details) (Crystal House Apartments Investors LLC [Member], USD $)
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0 Months Ended | 12 Months Ended |
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Mar. 20, 2013
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Dec. 31, 2013
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| Schedule of Equity Method Investments [Line Items] | ||
| Number of units | 828 | |
| Venture property acquisition cost | $ 262,500,000 | |
| Number of units available for development | 295 | |
| Number of approved units available for development | 252 | |
| Percentage of interest in venture | 25.00% | |
| Percentage of interest in developable land | 50.00% | |
| Business acquisition, cash paid | 30,200,000 | |
| Internal rate of return | 9.00% | |
| Mortgage loans, carrying amount | 165,000,000 | |
| Interest rate | 3.17% | |
| Mortgage loan, maturity date | March 2020 | |
| Initial term of interest only payments | 5 years | |
| Amortization schedule | 30 years | |
| Management, leasing and other services fees | $ 337,000 | |
| Holding and distribution pattern under operating agreement | In general, the operating agreement of CHAI provides that net operating cash flows are distributed to the members in accordance with ownership percentages. Net cash flows from a capital event are distributed first to the members in accordance with ownership percentages until they receive a nine percent IRR, as defined, with any excess distributed 50 percent to the Company and 50 percent to UBS. | |
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Parent Company [Member]
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| Schedule of Equity Method Investments [Line Items] | ||
| Percentage of capital event cash flows distributed | 50.00% | |
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UBS Global Asset Management [Member]
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| Schedule of Equity Method Investments [Line Items] | ||
| Percentage of capital event cash flows distributed | 50.00% |