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Investments In Unconsolidated Joint Ventures (Overlook Ridge JV, L.L.C.) (Narrative) (Details) (USD $)
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2 Months Ended | 12 Months Ended | |||||||||||||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2012
Lennar Massachusetts Properties [Member]
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Dec. 31, 2012
LR JV-C Associates, L.L.C. [Member]
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Dec. 31, 2012
LR JV-C Associates, L.L.C. [Member]
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Dec. 31, 2012
LR Overlook Phase III, L.L.C. [Member]
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Dec. 31, 2012
Overlook Ridge JV, L.L.C. [Member]
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Oct. 23, 2012
Overlook Ridge JV, L.L.C. [Member]
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Oct. 23, 2012
Overlook Ridge JV's Interest In LR JV-C Associates [Member]
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Oct. 23, 2012
Overlook Ridge JV's Interest In LR Overlook Phase III [Member]
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Oct. 23, 2012
Quarrystone I Property [Member]
Overlook Ridge JV, L.L.C. [Member]
item
sqft
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Oct. 23, 2012
Overlook Phase III [Member]
Overlook Ridge JV, L.L.C. [Member]
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Dec. 31, 2012
Letter of Credit [Member]
LR JV-C Associates, L.L.C. [Member]
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Dec. 31, 2012
Senior Loans [Member]
LR JV-C Associates, L.L.C. [Member]
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Dec. 31, 2012
Junior Loans [Member]
LR JV-C Associates, L.L.C. [Member]
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| Schedule of Equity Method Investments [Line Items] | |||||||||||||||
| Indirect residual ownership percentage | 25.00% | ||||||||||||||
| Number of units | 251 | ||||||||||||||
| Investment ownership percentage | 50.00% | 100.00% | 50.00% | ||||||||||||
| Area of property (in square feet) | 278,721 | ||||||||||||||
| Percentage of interest in venture | 50.00% | ||||||||||||||
| Priority partnership loan | $ 18,200,000 | ||||||||||||||
| Accrued interest payable | 27,555,000 | 29,046,000 | 11,700,000 | ||||||||||||
| Mortgage loans, carrying amount | 69,900,000 | 69,900,000 | 5,400,000 | 52,900,000 | 17,000,000 | ||||||||||
| Mortgage loan, maturity date | March 2013 | March 2013 | |||||||||||||
| Spread over LIBOR | 4.00% | 2.00% | 0.90% | ||||||||||||
| Borrowing capacity under the credit facility | 600,000,000 | 17,000,000 | |||||||||||||
| Amount of debt guaranteed by company | 1,500,000 | ||||||||||||||
| Management, leasing and other services fees | $ 34,000 | ||||||||||||||
| Holding and distribution pattern under operating agreement | In general, the operating agreement of LR Overlook provides, among other things, for distributions of cash flow to the members in accordance with their ownership percentages, subject to the repayment of priority partnership loans. | The operating agreement of Overlook Ridge JV provides, among other things, for the distribution of distributable cash, as defined, to the members, as follows:First, to the members in proportion to their respective unrecovered capital percentages, as defined in the agreement, until each member's unrecovered capital has been reduced to zero; and Second, to the members in accordance with their ownership percentages. | |||||||||||||