GOODWILL AND OTHER INTANGIBLE ASSETS (Identifiable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 64,565		$ 64,565		$ 64,565
Accumulated Amortization	50,074		50,074		47,923
Total	686	861	2,151	2,366
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,801		27,801		27,801
Accumulated Amortization	22,115		22,115		21,674
Total	141	235	441	712
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,239		36,239		36,239
Accumulated Amortization	27,695		27,695		26,098
Total	507	579	1,597	1,588
Non-Solicitation Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	525		525		525
Accumulated Amortization	264		264		151
Total	38	47	113	66
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 688		$ 688		$ 688