VARIABLE INTEREST ENTITIES FINANCING RECEIVABLES (Allowance for Loan Losses and Recorded Investments in Loans) (Details) RSO (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 RSO [Member]	Dec. 31, 2013 RSO [Member]	Sep. 30, 2014 RSO [Member] Commercial Real Estate Loans [Member]	Dec. 31, 2013 RSO [Member] Commercial Real Estate Loans [Member]	Sep. 30, 2014 RSO [Member] Bank Loans [Member]	Dec. 31, 2013 RSO [Member] Bank Loans [Member]	Sep. 30, 2014 RSO [Member] Residential Mortgage Loans [Member]	Dec. 31, 2013 RSO [Member] Residential Mortgage Loans [Member]	Sep. 30, 2014 RSO [Member] Loans Receivable - Related Party [Member]	Sep. 30, 2014 RSO [Member] Loans Receivable - Related Party [Member]	Dec. 31, 2013 RSO [Member] Loans Receivable - Related Party [Member]	Sep. 30, 2014 Loans Receivable [Member] RSO [Member]
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Allowance for losses at beginning of period						$ 13,807,000	$ 17,691,000	$ 10,416,000	$ 7,986,000	$ 3,391,000	$ 9,705,000	$ 0	$ 0		$ 0	$ 0
Provision for loan loss						(1,739,000)	3,020,000	(3,708,000)	2,686,000	1,033,000	334,000	0	0	236,000	936,000	0
Charge-offs	(7,128,000)	(682,000)	(7,129,000)	(706,000)		(6,625,000)	(6,904,000)	(2,665,000)	(256,000)	(3,960,000)	(6,648,000)	0	0		0	0
Allowance for losses at end of period						5,443,000	13,807,000	4,043,000	10,416,000	464,000	3,391,000	0	0	936,000	936,000	0
Allowance for losses, ending balance:
Individually evaluated for impairment	32,522,000	35,728,000	32,522,000	35,728,000		1,400,000	7,193,000	0	4,572,000	464,000	2,621,000	0	0	936,000	936,000	0
Collectively evaluated for impairment	5,000	32,000	5,000	32,000		4,043,000	6,614,000	4,043,000	5,844,000	0	770,000	0	0	0	0	0
Loans acquired with deteriorated credit quality						0	0	0	0	0	0	0	0	0	0	0
Loans, ending balance:
Individually evaluated for impairment	65,157,000		65,157,000		67,152,000	173,408,000	204,923,000	165,960,000	194,403,000	2,340,000	3,554,000	0	0	5,108,000	5,108,000	6,966,000
Ending balance, collectively evaluated for impairment	81,000		81,000		91,000	1,581,020,000	1,207,292,000	940,423,000	631,908,000	637,772,000	558,469,000	2,825,000	16,915,000	0	0	0
Loans acquired with deteriorated credit quality						86,000	0	0	0	86,000	0	0	0	0	0	0
Loans, pledged as collateral, at fair value						$ 83,000,000	$ 0										$ 83,000,000