VARIABLE INTEREST ENTITIES FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities Measured at Fair Value) (Details) RSO (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Assets:
Investment securities, trading	$ 1,016	$ 317
Investment securities available-for-sale	8,829	7,522
RSO [Member]
Assets:
Investment securities, trading	9,187	11,558
Investment securities available-for-sale	281,018	215,206
CMBS - linked transactions	14,272	30,066
Derivatives, at fair value	21,618	0
RSO [Member] | Recurring Basis [Member]
Assets:
Investment securities, trading	9,187	11,558
Investment securities available-for-sale	281,018	209,837
CMBS - linked transactions	14,272	30,066
Derivatives, at fair value	21,618
Total assets at fair value	326,095	251,461
Liabilities:
Derivatives (net)	8,830	10,586
Total liabilities at fair value	8,830	10,586
RSO [Member] | Recurring Basis [Member] | Level 1 [Member]
Assets:
Investment securities, trading	0	0
Investment securities available-for-sale	870	2,370
CMBS - linked transactions	0	0
Derivatives, at fair value	0
Total assets at fair value	870	2,370
Liabilities:
Derivatives (net)	0	0
Total liabilities at fair value	0	0
RSO [Member] | Recurring Basis [Member] | Level 2 [Member]
Assets:
Investment securities, trading	0	0
Investment securities available-for-sale	1,530	92
CMBS - linked transactions	0	0
Derivatives, at fair value	21,618
Total assets at fair value	23,148	92
Liabilities:
Derivatives (net)	872	395
Total liabilities at fair value	872	395
RSO [Member] | Recurring Basis [Member] | Level 3 [Member]
Assets:
Investment securities, trading	9,187	11,558
Investment securities available-for-sale	278,618	207,375
CMBS - linked transactions	14,272	30,066
Derivatives, at fair value	0
Total assets at fair value	302,077	248,999
Liabilities:
Derivatives (net)	7,958	10,191
Total liabilities at fair value	$ 7,958	$ 10,191