VARIABLE INTEREST ENTITIES INTANGIBLE ASSETS (Details) RSO (USD $)	3 Months Ended		12 Months Ended	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
RSO [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 507,000	$ 444,000
Fee income	1,605,000	2,500,000
Year ended December 31, 2014	2,000,000			2,000,000
Year ended December 31, 2016	1,800,000			1,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,800,000			1,800,000
Year ended December 31, 2017	1,600,000			1,600,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,000,000			1,000,000
Weighted average amortization period	6 years 5 months		6 years 7 months
Accumulated Amortization	12,584,000		12,077,000	12,584,000	12,077,000
RSO [Member] | Servicing Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Year ended December 31, 2016	2,000,000			2,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,800,000			1,800,000
Year ended December 31, 2017	1,700,000			1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,100,000			1,100,000
Weighted average amortization period				1 year 3 months 18 days	1 year 4 months 24 days
Principal Amount Outstanding of Loans Held-in-portfolio	1,160,308,000		894,767,000	1,160,308,000	894,767,000	433,153,000
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	2,000,000			2,000,000
RSO [Member] | Investment in RCAM [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	12,223,000		11,779,000	12,223,000	11,779,000
Investment in RCAM [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fee income	965,000	1,700,000
Investment in RCAM [Member] | RSO [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fee income	$ 965,000	$ 1,700,000