VARIABLE INTEREST ENTITIES BORROWINGS (Apidos CDO III) (Details) RSO (Apidos CDO III Senior Notes [Member], USD $)	1 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended				5 Months Ended
	Dec. 31, 2013 RSO [Member]	Dec. 31, 2012 RSO [Member]	May 31, 2006 RSO [Member]	May 31, 2006 RSO [Member] Senior Notes Class A-1 [Member]	Dec. 31, 2013 RSO [Member] Senior Notes Class A-1 [Member]	May 31, 2006 RSO [Member] Senior Notes Class A-2 [Member]	May 31, 2006 RSO [Member] Senior Notes Class B [Member]	May 31, 2006 RSO [Member] Senior Notes Class C [Member]	May 31, 2006 RSO [Member] Senior Notes Class D [Member]	May 31, 2006 RCC Commercial [Member]
Debt Instrument [Line Items]
Closing transaction amount			$ 285,500,000
Face amount of debt issued			262,500,000	212,000,000		19,000,000	15,000,000	10,500,000	6,000,000
Debt instrument, weighted average interest rate	0.88%	0.80%
Payments by parent to acquire notes issued by VIE										23,000,000
Percentage of senior notes acquired by the parent										100.00%
Description of variable rate basis	3-month LIBOR
Basis spread on variable rate				0.26%		0.45%	0.75%	1.75%	4.25%
Repayments of debt					$ 129,200,000