GOODWILL AND OTHER INTANGIBLE ASSETS (Gross Carrying Amouns and Accumulated Amortization of Intangible Assets and Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,623	$ 18,339
Accumulated Amortization	(8,485)	(17,829)
Net Carrying Amount	$ 138	510
Finite-Lived Intangible Asset, Useful Life	15 years
Goodwill	$ 84,171	$ 84,171	$ 84,171
Weighted average [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years	1 year 8 months 12 days
Core Deposits [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 0	$ 9,716
Accumulated Amortization	0	(9,716)
Net Carrying Amount	0	0
Other Identifiable Intangible Assets
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,623	8,623
Accumulated Amortization	(8,485)	(8,113)
Net Carrying Amount	$ 138	$ 510