FAIR VALUE ACCOUNTING AND MEASUREMENT (Unobservable Inputs Rollforward) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Junior Subordinated Debt [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 73,220,000	$ 49,368,000	$ 73,063,000	$ 49,988,000
Liabilities (gains)	251,000	21,185,000	408,000	20,565,000
Ending balance	73,471,000	70,553,000	73,471,000	70,553,000
TPS and TRUP CDOs [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	34,520,000	31,056,000	35,741,000	30,455,000
Assets gains, including OTTI	585,000	1,437,000	(636,000)	2,038,000
Ending balance	$ 35,105,000	$ 32,493,000	$ 35,105,000	$ 32,493,000