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Investments In Unconsolidated Joint Ventures (RiverPark At Harrison I, L.L.C.) (Narrative) (Details) (USD $)
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0 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | ||||||||
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Jul. 15, 2013
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Sep. 30, 2013
item
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Sep. 30, 2013
RiverPark At Harrison I, L.L.C. [Member]
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Oct. 23, 2012
RiverPark At Harrison I, L.L.C. [Member]
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Sep. 30, 2013
RiverPark At Harrison I, L.L.C. [Member]
Chall Enterprises, L.L.C. [Member]
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Sep. 30, 2013
RiverPark At Harrison I, L.L.C. [Member]
Investor Group [Member]
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Sep. 30, 2013
Riverpark Project [Member]
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Sep. 30, 2013
Riverpark Project [Member]
RiverPark At Harrison I, L.L.C. [Member]
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Oct. 23, 2012
Riverpark Project [Member]
RiverPark At Harrison I, L.L.C. [Member]
item
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Sep. 30, 2013
Construction Loan [Member]
RiverPark At Harrison I, L.L.C. [Member]
item
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Sep. 30, 2013
Construction Loan [Member]
Riverpark Project [Member]
RiverPark At Harrison I, L.L.C. [Member]
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Sep. 30, 2013
Construction Loan Extension Number 1 [Member]
RiverPark At Harrison I, L.L.C. [Member]
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Sep. 30, 2013
Construction Loan Extension Number 2 [Member]
RiverPark At Harrison I, L.L.C. [Member]
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| Schedule of Equity Method Investments [Line Items] | |||||||||||||
| Percentage of interest in venture | 36.00% | ||||||||||||
| Number of units | 141 | ||||||||||||
| Total project costs | $ 28,200,000 | ||||||||||||
| Percentage of capital required to fund project | 40.50% | ||||||||||||
| Third party ownership percentage | 36.00% | 28.00% | |||||||||||
| Maximum borrowing capacity | 600,000,000 | 600,000,000 | 23,400,000 | 23,400,000 | |||||||||
| Amount outstanding | $ 900,000 | ||||||||||||
| Spread over LIBOR | 1.25% | 2.35% | |||||||||||
| Loan maturity date | Jun. 01, 2016 | ||||||||||||
| Number of extension options | 2 | 2 | |||||||||||
| Loan extension period | 1 year | ||||||||||||
| Extension fee | 0.20% | 0.20% | |||||||||||
| Percentage of debt guaranteed by the company | 25.00% | ||||||||||||
| Percentage of debt guaranteed by company after project completion and achievement of financial ratios | 10.00% | ||||||||||||
| Threshold of payment guarantee, debt service coverage ratio | 1.30 | ||||||||||||
| Threshold of payment guarantee, loan-to-value ratio | 65.00% | ||||||||||||
| Holding and distribution pattern under operating agreement | In general, the operating agreement of RiverPark provides, among other things, for the distribution of net cash flow to the members in accordance with their ownership percentages. | ||||||||||||