COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands		3 Months Ended
	Apr. 11, 2016 USD ($)	Mar. 31, 2016 USD ($) Partnership Fund	Apr. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Number of investments sponsored and managed | Partnership		1
Management fee expense		$ 1,300
Loans held for investment, unfunded loan commitments		$ 5,300
Unfunded capital commitments, number | Fund		5
Unfunded capital commitments, period		2 years
Other commitment		$ 183
Apartment REIT III
Loss Contingencies [Line Items]
Cumulative funded equity in fund		$ 200
Investment commitment		1.00%
Equity raised in fund		$ 100,000
Maximum investment commitment		1,000
Pearlmark Real Estate Partners
Loss Contingencies [Line Items]
Equity raised in fund		8,000
Cost method investment		$ 7,000
Internal rate of return		10.00%
Pearlmark Mezzanine Realty Partners IV, L.P.
Loss Contingencies [Line Items]
Equity raised in fund		$ 1,700
Cost method investment		378
Resource Securities
Loss Contingencies [Line Items]
Minimum net capital required		100		$ 259
Net capital		1,000		1,000
Minimum requirement of net capital exceeded by		$ 902		$ 780
Maximum
Loss Contingencies [Line Items]
Clawback liability, percentage		75.00%
Subsequent Event | RRA CP LLC
Loss Contingencies [Line Items]
Cumulative funded equity in fund	$ 25,000
Investment commitment	5.00%
Maximum investment commitment	$ 1,200
Subsequent Event | Pearlmark Real Estate Partners
Loss Contingencies [Line Items]
Cost method investment			$ 1,000