SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Revenue Recognition) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 Partnership	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2013	Feb. 28, 2011
Schedule of Revenue Recognition [Line Items]
Ownership percentage				10.00%
Construction Management Fee, Percentage	5.00%
Partnership, Number Liquidated	2
Percentage of Benefit from Tax Position that Will be Realized Upon Settlment	50.00%
Hotel Savannah, GA [Member]
Schedule of Revenue Recognition [Line Items]
Number of Rooms	86
Percent owned in real estate property	80.00%
Commercial Finance, Four Investment Entities [Member]
Schedule of Revenue Recognition [Line Items]
Amount waived of the fund management fees from commercial finance investment entities	683,000	$ 1,800,000	$ 3,900,000
Number of commercial finance investment entities that management fees were waved	4
Minimum [Member]
Schedule of Revenue Recognition [Line Items]
Acquisition fees, percentage	1.00%
Financing fees, percentage	0.50%
Debt origination fee, percentage	0.50%
Property management fee, percentage	4.50%
Disposition Fee, Percentage	1.00%
Maximum [Member]
Schedule of Revenue Recognition [Line Items]
Acquisition fees, percentage	2.00%
Financing fees, percentage	1.75%
Debt origination fee, percentage	5.00%
Property management fee, percentage	4.50%
Disposition Fee, Percentage	2.75%
Maximum [Member] | RSO [Member]
Schedule of Revenue Recognition [Line Items]
Ownership percentage	15.00%
Collateralized Loan Obligations [Member]
Schedule of Revenue Recognition [Line Items]
Bank loans	800,000,000	$ 800,000,000			$ 1,700,000,000
Management Fees [Member]
Schedule of Revenue Recognition [Line Items]
Number of CLOs holding	3				5
Management Fees [Member] | Apidos [Member]
Schedule of Revenue Recognition [Line Items]
Number of CLOs holding	2
Base and Additional Management Fees [Member]
Schedule of Revenue Recognition [Line Items]
Management fees paid	10.00%
Incentive Collateral Managment Fees [Member]
Schedule of Revenue Recognition [Line Items]
Management fees paid	50.00%
Payable in Cash [Member]
Schedule of Revenue Recognition [Line Items]
Quarterly incentive compensation, percentage	75.00%
Payable in Restricted Shares [Member]
Schedule of Revenue Recognition [Line Items]
Required period of retention of shares	1 year
Restricted stock, valuation period	30 days
Restricted stock, period between valuation period end and issuance date	3 days
Payable in Restricted Shares [Member] | Minimum [Member]
Schedule of Revenue Recognition [Line Items]
Quarterly incentive compensation, percentage	25.00%
Monthly Fee [Member]
Schedule of Revenue Recognition [Line Items]
Debt management fee, percentage	0.167%
Annual Fee [Member]
Schedule of Revenue Recognition [Line Items]
Debt management fee, percentage	2.00%
Investment management fee, percentage	1.00%
Annual Fee [Member] | Minimum [Member]
Schedule of Revenue Recognition [Line Items]
Asset management fees percentage	1.00%
Annual Fee [Member] | Maximum [Member]
Schedule of Revenue Recognition [Line Items]
Asset management fees percentage	2.00%
Quarterly Fee [Member]
Schedule of Revenue Recognition [Line Items]
Asset management fees percentage	0.083%