VARIABLE INTEREST ENTITIES - BUSINESS COMBINATIONS (Additional Information) (Details) RSO (RSO [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 31, 2013	Oct. 31, 2013	Feb. 27, 2014
Business Acquisition [Line Items]
Total cash purchase price	$ 0	$ 7,613	$ 0
Value of restricted stock awarded	890	823	2,189
Primary Capital Advisors LLC [Member]
Business Acquisition [Line Items]
Total cash purchase price				7,613
Wholesale and correspondent relationships				600	600
Primary Capital Advisors LC [Member]
Business Acquisition [Line Items]
Value of restricted stock awarded					800
Equity Compensation Expense [Member]
Business Acquisition [Line Items]
Share-based compensation expense	634	106
General and Administrative Expense [Member]
Business Acquisition [Line Items]
Share-based compensation expense	$ 189	$ 48
Life Care Funding, LLC [Member]
Business Acquisition [Line Items]
Ownership percentage in VIE						50.20%
Wholesale or Correspondent Relationships [Member]
Business Acquisition [Line Items]
Intangible asset, estimated useful life	2 years