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VARIABLE INTEREST ENTITIES INVESTMENTS IN REAL ESTATE (Investments in Real Estate) (Details) RSO (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2012
RSO [Member]
Dec. 31, 2011
RSO [Member]
Dec. 31, 2012
RSO [Member]
Multi-Family Property [Member]
Property
Dec. 31, 2011
RSO [Member]
Multi-Family Property [Member]
Property
Dec. 31, 2012
RSO [Member]
Office Real Estate Property [Member]
Property
Dec. 31, 2011
RSO [Member]
Office Real Estate Property [Member]
Property
Dec. 31, 2012
RSO [Member]
Hotel property [Member]
Property
Dec. 31, 2011
RSO [Member]
Hotel property [Member]
Property
Real Estate Properties [Line Items]                    
Book Value     $ 77,936 $ 48,726 $ 42,179 $ 38,577 $ 10,149 $ 10,149 $ 25,608 $ 0
Less: Accumulated depreciation     (2,550) (699)            
Investments in real estate $ 19,149 $ 19,942 $ 75,386 $ 48,027            
Number of Properties         2 2 1 1 1 0