VARIABLE INTEREST ENTITIES FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities Measured at Fair Value) (Details) RSO - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Investment securities, trading	$ 281	$ 475
Investment securities available-for-sale	10,589	9,065
RSO [Member]
Assets:
Investment securities, trading	32,680	20,786
Investment securities available-for-sale	253,428	275,720
CMBS - linked transactions	0	15,367
Derivatives, at fair value	4,289	5,304
RSO [Member] \| Recurring Basis [Member]
Assets:
Investment securities, trading	32,680	20,786
Investment securities available-for-sale	253,428	275,720
Loans held for sale	105,094
CMBS - linked transactions		15,367
Derivatives, at fair value	4,289	5,304
Total assets at fair value	395,491	317,177
Liabilities:
Moselle CLO Notes		68,940
Derivatives (net)	(6,991)	8,476
Total liabilities at fair value	(6,991)	77,416
RSO [Member] \| Recurring Basis [Member] \| Level 1 [Member]
Assets:
Investment securities, trading	0	0
Investment securities available-for-sale	0	0
Loans held for sale	0
CMBS - linked transactions		0
Derivatives, at fair value	0	3,429
Total assets at fair value	0	3,429
Liabilities:
Moselle CLO Notes		0
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	4,865	33,158
Loans held for sale	64,751
CMBS - linked transactions		0
Derivatives, at fair value	1,275	7
Total assets at fair value	70,891	33,165
Liabilities:
Moselle CLO Notes		0
Derivatives (net)	(355)	0
Total liabilities at fair value	(355)	0
RSO [Member] \| Recurring Basis [Member] \| Level 3 [Member]
Assets:
Investment securities, trading	32,680	20,786
Investment securities available-for-sale	248,563	242,562
Loans held for sale	40,343
CMBS - linked transactions		15,367
Derivatives, at fair value	3,014	1,868
Total assets at fair value	324,600	280,583
Liabilities:
Moselle CLO Notes		68,940
Derivatives (net)	(6,636)	8,476
Total liabilities at fair value	$ (6,636)	$ 77,416

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