VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for management fees – commercial finance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 36,229	$ 29,586	$ 10,307
Additions Charged to Costs and Expenses	3,123	6,643	19,279
Amounts Written-off Against the Allowance, Net of Recoveries	(22,362)	0	0
Balance at End of Year	16,990	36,229	29,586
Allowance for management fees – real estate [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	0	2,517	2,268
Additions Charged to Costs and Expenses	0	(2,518)	389
Amounts Written-off Against the Allowance, Net of Recoveries	0	1	(140)
Balance at End of Year	0	0	2,517
Allowance for doubtful accounts– financial fund management [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	0	457	0
Additions Charged to Costs and Expenses	0	199	457
Amounts Written-off Against the Allowance, Net of Recoveries	0	(656)	0
Balance at End of Year	0	0	457
Allowance for investments in commercial finance assets: [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	0	0	0
Additions Charged to Costs and Expenses	(62)	(42)	(16)
Amounts Written-off Against the Allowance, Net of Recoveries	62	42	16
Balance at End of Year	0	0	0
Allowance for rent receivables: [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	14	68	29
Additions Charged to Costs and Expenses	(3)	(17)	39
Amounts Written-off Against the Allowance, Net of Recoveries	(11)	(37)	0
Balance at End of Year	$ 0	$ 14	$ 68