VARIABLE INTEREST ENTITIES INVESTMENT SECURITIES TRADING (Details) RSO $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) Security	Sep. 30, 2014 USD ($) Security	Dec. 31, 2014 USD ($) Security
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair Value	$ 1,313		$ 475
RSO [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	28,531		24,772
Unrealized Gains	1,952		1,098
Unrealized Losses	(4,768)		(5,084)
Fair Value	$ 25,715		$ 20,786
Trading Securities, Number Sold | Security	19	2
Gains on trading securities	$ 1,400	$ 2,500
Number of trading securities held | Security	50		37
Structured notes [Member] | RSO [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	$ 26,635		$ 22,876
Unrealized Gains	1,952		1,098
Unrealized Losses	(2,872)		(3,188)
Fair Value	25,715		20,786
RMBS [Member] | RSO [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	1,896		1,896
Unrealized Gains	0		0
Unrealized Losses	(1,896)		(1,896)
Fair Value	$ 0		$ 0