VARIABLE INTEREST ENTITIES INVESTMENT SECURITIES AVAILABLE-FOR-SALE (Details) RSO (USD $)	3 Months Ended	12 Months Ended											12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 CMBS [Member]	Dec. 31, 2012 CMBS [Member]	Dec. 31, 2013 RSO [Member]	Dec. 31, 2012 RSO [Member]	Dec. 31, 2011 RSO [Member]	Dec. 31, 2013 RSO [Member] CMBS [Member] Security	Dec. 31, 2012 RSO [Member] CMBS [Member] Security	Dec. 31, 2012 RSO [Member] ABS [Member] Security	Dec. 31, 2013 RSO [Member] ABS [Member]	Dec. 31, 2013 RSO [Member] Corporate bonds [Member] Security	Dec. 31, 2012 RSO [Member] Corporate bonds [Member] Security
Schedule of Available-for-sale Securities [Line Items]
Impairment charge on loan investment	$ 2,300,000	$ 214,000		$ 328,000	$ 42,000
CMBS, at fair value						209,837,000	231,590,000
Net unrealized losses		214,000	74,000			855,000	180,000	6,898,000
Number of securities sold									4	7	5		35	1
Par value of securities sold									14,500,000	31,000,000	4,255,000		34,253,000	2,250,000
Number of securities redeemed													3	2
Par value of securities redeemed													4,300,000	2,100,000
Realized gain (loss) on redemption													(11,000)
Excess of aggregate discount over aggregate premium									6,583,000	8,011,000	3,145,000	2,394,000	(68,000)	(479,000)
Realized gains on redemption														$ (27,000)