FAIR VALUE OF FINANCIAL INSTRUMENTS (Unobservable Inputs Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Junior Subordinated Debt [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 93,298	$ 84,694	$ 92,480	$ 78,001
Liabilities (gains) losses	1,066	489	1,884	1,223
Purchases, issuances and settlements, including acquisitions	0	0	0	5,959
Sales, maturities and paydowns, net of discount amortization		0		0
Ending balance	94,364	85,183	94,364	85,183
TPS and TRUP CDOs [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		12,571	18,699	19,119
Assets gains (losses), including OTTI		(596)	501	1,475
Purchases, issuances and settlements, including acquisitions		6,338	1,725	6,338
Sales, maturities and paydowns, net of discount amortization		27		(8,592)
Ending balance	20,925	$ 18,340	20,925	$ 18,340
TPS Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	20,645
Assets gains (losses), including OTTI	280
Purchases, issuances and settlements, including acquisitions	0
Ending balance	$ 20,925		$ 20,925