VARIABLE INTEREST ENTITIES VARIABLE INTEREST ENTITIES (Details) RSO (USD $)			1 Months Ended	3 Months Ended		9 Months Ended			0 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended			1 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended			9 Months Ended				1 Months Ended		0 Months Ended		1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Oct. 31, 2012 RSO [Member]	Sep. 30, 2014 RSO [Member]	Sep. 30, 2013 RSO [Member]	Sep. 30, 2014 RSO [Member] credit	Sep. 30, 2013 RSO [Member]	Dec. 31, 2013 RSO [Member]	Nov. 16, 2011 RSO [Member] Series B Preferred Stock [Member]	Feb. 28, 2011 RSO [Member] Investment in RCAM [Member] Entity	Sep. 30, 2014 RSO [Member] Investment in RCAM [Member]	Sep. 30, 2013 RSO [Member] Investment in RCAM [Member]	Sep. 30, 2014 RSO [Member] Investment in RCAM [Member]	Sep. 30, 2013 RSO [Member] Investment in RCAM [Member]	Dec. 31, 2013 RSO [Member] Investment in RCAM [Member]	Sep. 30, 2014 RSO [Member] Entity	Sep. 30, 2013 RSO [Member]	Sep. 30, 2014 RSO [Member] Entity	Sep. 30, 2013 RSO [Member]	Sep. 30, 2014 RSO [Member] Moselle [Member]	May 31, 2013 RSO [Member] Investment in RCAM [Member]	Oct. 31, 2012 RSO [Member] Investment in RCAM [Member]	Nov. 16, 2011 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member]	Sep. 30, 2014 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member] Position	Dec. 31, 2013 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member]	Nov. 16, 2011 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member] Series A Preferred Stock [Member]	Nov. 16, 2011 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member] Series B Preferred Stock [Member]	Nov. 16, 2011 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] LEAF [Member] Series D Preferred Stock [Member]	Sep. 30, 2014 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Investment in RCT I and RCT II [Member]	Sep. 30, 2014 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Interest in RCT I [Member]	Sep. 30, 2014 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Interest in RCT II [Member]	Feb. 28, 2011 RSO [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Investment in RCAM [Member] Entity	Feb. 28, 2014 Class 1 Subordinated Notes [Member] RSO [Member] Moselle [Member]	Feb. 28, 2014 Class 2 Subordinated Notes [Member] RSO [Member] Moselle [Member]	Jul. 29, 2014 RCC Residential, Inc. [Member] RSO [Member]	Jul. 29, 2014 RCC Residential, Inc. [Member] RSO [Member]	Sep. 30, 2014 Pelium [Member] RSO [Member]
Variable Interest Entity [Line Items]
Number of consolidated VIEs																10		10
Number Of Credits Supported In VIEs						2
Financial support provided to VIEs																$ 209,000	$ 69,000	$ 800,000	$ 1,900,000
Shares received in equity method transaction (in shares)																										31,341	4,872	2,364
Preferred stock, coupon authorized									8.00%
Ownership percentage in VIE																							26.70%	28.30%					100.00%
Investments in unconsolidated entities				60,540,000		60,540,000		69,069,000															36,300,000	40,200,000	41,000,000				1,500,000
Payments to Acquire Equity Method Investments																				40,000,000															15,000,000		17,500,000
Ownership percentage																																				63.80%	80.40%
Percentage of Outstanding Notes Purchased																																	100.00%	67.90%
Payments to Acquire Businesses and Interest in Affiliates																																			23,500,000
Variable interest entity, number of board positions held by the company																								2
Variable interest entity, total number of board positions																								6
Percentage of total value of trusts owned																														3.00%	3.00%
Borrowings	20,451,000	20,619,000		1,591,241,000		1,591,241,000		1,320,015,000																						25,800,000	25,800,000
Number of CLOs held by purchased entity										5																						4
Acquisition										22,500,000
Intangible assets				10,254,000		10,254,000		11,822,000			9,900,000		9,900,000		11,200,000
Fee income				2,344,000	1,245,000	7,166,000	4,182,000				1,200,000	1,200,000	4,000,000	4,200,000
Preferred equity acquired			66.60%																		68.30%	66.60%
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest																																					10.00%
Ownership Percentage, Duration																																					5 years
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Increase																																					20.00%
Partners' Capital Account, Contributions																																					40,000,000
Payments to Acquire Interest in Subsidiaries and Affiliates																																					$ 2,800,000