VARIABLE INTEREST ENTITIES INVESTMENTS IN REAL ESTATE (Details) RSO (RSO [Member], USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Dec. 31, 2012 Loan	Dec. 31, 2011 Property Loan	Sep. 06, 2012 Foreclosed Coconut Grove Florida Property [Member] Unit	Dec. 31, 2011 Whispertree Apartments [Member] Unit	Dec. 31, 2011 Foreclosed Pacific Palisades California Property [Member]	Dec. 31, 2012 Foreclosed Memphis Tennessee Property [Member] Unit
Real Estate Line Items [Line Items]
Number of loans foreclosed	1
Number of loans converted		2
Number of assets acquired		1
Real estate acquired through foreclosure			$ 25.5		$ 10.7	$ 22.4
Number of units in real estate property			179	504		400
Percentage occupied on acquisition (in hundredths)			75.00%	95.00%	60.00%	93.80%
Real estate acquired through purchase				18.1
New mortgage loan, amount				13.6
Acquisition price adjustment	$ 3.9