FAIR VALUE ACCOUNTING AND MEASUREMENT (Unobservable Inputs Rollforward) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Junior Subordinated Debt [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 70,553	$ 47,986	$ 49,988	$ 48,425
Liabilities (gains)	2,518	784	23,083	345
Paydowns and maturities				0
Ending balance	73,071	48,770	73,071	48,770
TPS and TRUP CDOs [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	32,493	30,728	30,455	29,661
Assets gains, including OTTI	2,687	(91)	4,725	1,018
Paydowns and maturities		(17)		(59)
Ending balance	$ 35,180	$ 30,620	$ 35,180	$ 30,620