GOODWILL AND OTHER INTANGIBLE ASSETS (Identifiable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 64,565		$ 64,565		$ 64,565
Accumulated Amortization	49,388		49,388		47,923
Total	722	762	1,465	1,504
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,801		27,801		27,801
Accumulated Amortization	21,975		21,975		21,674
Total	144	242	301	476
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,239		36,239		36,239
Accumulated Amortization	27,187		27,187		26,098
Total	540	511	1,089	1,009
Non-Solicitation Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	525		525		525
Accumulated Amortization	226		226		151
Total	38	9	75	19
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 688		$ 688		$ 688