VARIABLE INTEREST ENTITIES BORROWINGS (Securitization) (Details) - RSO [Member] $ in Millions	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	$ 262.5
RREF CDO 2006-1 Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	194.2
RREF CDO 2007-1 Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	215.9
RCC CRE Notes 2013 [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	112.7
RCC CRE Notes 2014 [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	0.0
RCC CRE Notes 2015 [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	0.0
Apidos Cinco CDO Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	113.1
Moselle CLO S.A. Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	167.2
Moselle CLO S.A. Securitized Borrowings [Member]
Debt Instrument [Line Items]
Debt Instrument, Cumulative Amount Repaid	$ 5.0