VARIABLE INTEREST ENTITIES BORROWINGS (Details) RSO			1 Months Ended		1 Months Ended					1 Months Ended		1 Months Ended											1 Months Ended					1 Months Ended											1 Months Ended			0 Months Ended														0 Months Ended
	Sep. 30, 2014 RSO [Member] USD ($)	Dec. 31, 2013 RSO [Member] USD ($)	Jul. 31, 2014 RSO [Member] RCC CRE Notes 2014 [Member] USD ($)	Sep. 30, 2014 RSO [Member] RCC CRE Notes 2014 [Member] USD ($)	Jul. 31, 2014 RSO [Member] RCC CRE Notes 2014 [Member] Senior Notes Class A [Member] USD ($)	Jul. 31, 2014 RSO [Member] RCC CRE Notes 2014 [Member] Senior Notes Class B [Member] USD ($)	Jul. 31, 2014 RSO [Member] RCC CRE Notes 2014 [Member] Senior Notes Class C [Member] USD ($)	Sep. 30, 2014 RSO [Member] CMBS - Term Repurchase Facilities [Member] USD ($)	Dec. 31, 2013 RSO [Member] CMBS - Term Repurchase Facilities [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member]	Sep. 30, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-1E [Member] EUR (€)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-2L [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-3E [Member] EUR (€)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-3L [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class B-1E [Member] EUR (€)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class B-1L [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-1L [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-1LE [Member] USD ($)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-1LE [Member] EUR (€)	Feb. 28, 2014 RSO [Member] Moselle CLO SA Senior Notes [Member] Senior Notes Class A-2E [Member] EUR (€)	Sep. 30, 2014 RSO [Member] RMBS - Term Repurchase Facility [Member] USD ($)	Jul. 31, 2014 RCC Commercial [Member] RCC CRE Notes 2014 [Member] USD ($)	Jul. 31, 2014 RCC Commercial [Member] RCC CRE Notes 2014 [Member] Senior Notes Class C [Member] USD ($)	Sep. 30, 2014 RCC Real Estate [Member] USD ($)	Dec. 31, 2013 RCC Real Estate [Member] USD ($)	Feb. 28, 2014 Moselle [Member] RSO [Member]	Feb. 28, 2014 Moselle [Member] RSO [Member] Class 2 Subordinated Notes [Member]	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RSO [Member] RMBS - Term Repurchase Facility [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] Primary Capital Advisors LLC [Member] USD ($)	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CMBS - Term Repurchase Facilities [Member] USD ($)	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CMBS - Term Repurchase Facilities [Member] USD ($)	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CMBS - Term Repurchase Facilities [Member] Linked and Non-linked Transactions [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CMBS - Term Repurchase Facilities [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] USD ($)	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] USD ($)	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] Linked and Non-linked Transactions [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] Linked and Non-linked Transactions [Member]	Jun. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Residential Portfolio Inc. and RCC Residential Portfolio TRS Inc. [Member] RMBS - Term Repurchase Facility [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Wells Fargo Bank, National Association [Member] RCC Residential Portfolio Inc. and RCC Residential Portfolio TRS Inc. [Member] RMBS - Term Repurchase Facility [Member] Linked and Non-linked Transactions [Member] USD ($)	Sep. 30, 2014 New Century Bank [Member] Primary Capital Advisors LC [Member] USD ($) Amendment	Jul. 19, 2013 Deutsche Bank AG [Member] RCC Real Estate SPE 5 [Member] USD ($) extension	Sep. 30, 2014 Deutsche Bank AG [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] USD ($)	Dec. 31, 2013 Deutsche Bank AG [Member] RCC Real Estate [Member] CRE - Term Repurchase Facility [Member] USD ($)	Sep. 30, 2014 Repurchase Agreements [Member] Wells Fargo Bank, National Association [Member] RSO [Member] USD ($)	Dec. 31, 2013 Repurchase Agreements [Member] Wells Fargo Bank, National Association [Member] RSO [Member] USD ($)	Sep. 30, 2014 Repurchase Agreements [Member] Wells Fargo Bank, National Association [Member] RSO [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Repurchase Agreements [Member] JP Morgan Securities, LLC [Member] RSO [Member] USD ($)	Sep. 30, 2014 Repurchase Agreements [Member] JP Morgan Securities, LLC [Member] RCC Real Estate [Member] USD ($)	Dec. 31, 2013 Repurchase Agreements [Member] JP Morgan Securities, LLC [Member] RCC Real Estate [Member] USD ($)	Sep. 30, 2014 Repurchase Agreements [Member] JP Morgan Securities, LLC [Member] RCC Real Estate [Member] Linked and Non-linked Transactions [Member]	Dec. 31, 2013 Repurchase Agreements [Member] JP Morgan Securities, LLC [Member] RCC Real Estate [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Repurchase Agreements [Member] New Century Bank [Member] RSO [Member] Linked and Non-linked Transactions [Member]	Sep. 30, 2014 Revolving Credit Facility [Member] Northport LLC [Member] RSO [Member] USD ($)	Sep. 18, 2014 Revolving Credit Facility [Member] Northport LLC [Member] RSO [Member] USD ($)	Sep. 30, 2014 Revolving Credit Facility [Member] Minimum [Member] Northport LLC [Member] RSO [Member]	Sep. 30, 2014 Revolving Credit Facility [Member] Maximum [Member] Northport LLC [Member] RSO [Member]
Debt Instrument [Line Items]
Closing transaction amount			$ 353,900,000
Face amount of debt issued			235,300,000		196,400,000	38,900,000	17,700,000					24,900,000	13,800,000	6,800,000	6,800,000	16,000,000	16,000,000	24,900,000	10,300,000	10,300,000	13,800,000				185,061,000	91,931,000					21,559,000	47,601,000			47,704,000	30,003,000				285,000,000.0			7,576,000	(300,000)	27,963,000	0
Linked Repurchase Agreement Borrowings, Included as Derivative Instruments																																																0
Description of variable rate basis			one-month LIBOR							LIBOR
Basis spread on variable rate					1.05%	2.50%	4.25%					0.25%	0.40%	0.70%	0.75%	1.80%	1.85%	0.25%	0.31%	0.31%	0.40%																		4.00%																	1.50%	2.50%
Weighted Average Borrowing Rate	1.98%	1.87%		1.44%				1.43%	1.38%		1.19%											1.15%
Percentage of senior notes acquired by the parent			100.00%
Payments by parent to acquire notes issued by VIE																							100,900,000	17,700,000
Debt instrument, weighted average interest rate				1.44%																									1.15%		1.43%	1.38%	1.43%	1.38%	2.21%	2.67%	2.21%	2.67%					3.03%	0.00%	3.75%	0.00%	3.75%				0.00%	0.99%	3.45%
Percentage of Outstanding Notes Purchased																												67.90%
Ownership interests in variable interest entity																											88.60%
Unamortized Issuance Costs and Discounts	18,236,000	16,216,000		3,979,000				0	12,000		0											55,000									0	12,000			260,000	732,000							395,000	300,000
Debt Instrument, Term																																							1 year			12 months
Principal Outstanding	1,609,194,000	1,336,026,000		235,344,000				21,559,000	47,613,000		94,904,000											22,760,000																											0	17,020,000
Debt Instrument, Term, Option to Extend																																							1 year			1 year
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum																																							1.45%
Debt Instrument, Structuring Fee, Percent																																										0.25%
Line of Credit Facility, Maximum Borrowing Capacity																														75,000,000											30,000,000.0	200,000,000												225,000,000	110,000,000
Debt Instrument, Number Of Options To Extend																																										2
Number of Amendments to Facility																																									7
Line of credit facility, amount outstanding																																																						35,500,000
Debt Instrument, Covenant Requirement, Maximum Judgment Allowed Against Subsidiary or Guarantor	250,000
Loan to Value Ratio Required for Compliance	75.00%
Minimum Net Worth Required for Compliance	30,000,000
Line of credit facility, increase in borrowing capacity																																																						15,000,000
Line of Credit Facility, Maximum Borrowing Capacity, Effective Commitment																																																						$ 125,000,000