VARIABLE INTEREST ENTITIES BORROWINGS (Apidos CDO I) (Details) RSO (Apidos CDO I Senior Notes [Member], USD $)	1 Months Ended			1 Months Ended	12 Months Ended		1 Months Ended		1 Months Ended	12 Months Ended			1 Months Ended				1 Months Ended
	Dec. 31, 2013 RSO [Member]	Dec. 31, 2012 RSO [Member]	Aug. 31, 2005 RSO [Member]	Aug. 31, 2005 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-1 [Member]	Aug. 31, 2005 RSO [Member] Senior Notes Class A-2 [Member]	May 31, 2006 RSO [Member] Senior Notes Class A-2 [Member]	Aug. 31, 2005 RSO [Member] Senior Notes Class B [Member]	Dec. 31, 2013 RSO [Member] Senior Notes Class B [Member]	Dec. 31, 2012 RSO [Member] Senior Notes Class B [Member]	May 31, 2006 RSO [Member] Senior Notes Class B [Member]	Aug. 31, 2005 RSO [Member] Senior Notes Class C [Member]	May 31, 2006 RSO [Member] Senior Notes Class C [Member]	May 31, 2006 RSO [Member] Senior Notes Class D [Member]	Aug. 31, 2005 RSO [Member] Senior Notes Class D [Member]	Aug. 31, 2005 RCC Commercial [Member]
Debt Instrument [Line Items]
Closing transaction amount			$ 350,000,000
Face amount of debt issued			321,500,000			259,500,000		15,000,000				20,500,000		13,000,000	8,000,000
Debt instrument, weighted average interest rate	1.68%	1.07%
Payments by parent to acquire notes issued by VIE																	28,500,000
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%			0.42%		0.75%				1.85%
Interest rate at period end (in hundredths)																9.251%
Repayments of debt					232,400,000
Repurchase amount of debt											2,000,000
Weighted average price to par paid to repurchase debt										85.11%
Gain on repurchase of debt instrument										$ 298,000