VARIABLE INTEREST ENTITIES INVESTMENT SECURITIES TRADING (Schedule of Investment Trading Securities at Fair Value) (Details) RSO (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair Value	$ 266	$ 475
RSO [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	32,204	24,772
Unrealized Gains	2,063	1,098
Unrealized Losses	4,497	5,084
Fair Value	29,770	20,786
RSO [Member] | Structured notes [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	30,308	22,876
Unrealized Gains	2,063	1,098
Unrealized Losses	2,601	3,188
Fair Value	29,770	20,786
RSO [Member] | RMBS [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