LOANS AND LEASES (Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2013 contract	Sep. 30, 2013 contract	Dec. 31, 2012 contract
Financial effects of TDRs [Abstract]
Number of Contracts	19	46	136
Pre-Modification Outstanding Recorded Investment	$ 6,039	$ 10,782	$ 58,378
Post-Modification Outstanding Recorded Investment	6,032	10,736	56,042
TDRs modified for which there was a payment default [Abstract]
Number of Contracts	5	22	58
Recorded Investment	944	6,848	13,139
Home Equity [Member]
Financial effects of TDRs [Abstract]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		15
Commercial and industrial segment [Member]
Financial effects of TDRs [Abstract]
Number of Contracts	1	3	8
Pre-Modification Outstanding Recorded Investment	835	919	1,686
Post-Modification Outstanding Recorded Investment	835	919	1,348
TDRs modified for which there was a payment default [Abstract]
Number of Contracts		3	2
Recorded Investment		129	179
Real estate segment [Member] | Consumer mortgages [Member]
Financial effects of TDRs [Abstract]
Number of Contracts	10	16	38
Pre-Modification Outstanding Recorded Investment	452	1,233	9,875
Post-Modification Outstanding Recorded Investment	451	1,231	9,109
TDRs modified for which there was a payment default [Abstract]
Number of Contracts	2	7	18
Recorded Investment	129	580	2,096
Real estate segment [Member] | Agricultural [Member]
Financial effects of TDRs [Abstract]
Number of Contracts			2
Pre-Modification Outstanding Recorded Investment			853
Post-Modification Outstanding Recorded Investment			861
TDRs modified for which there was a payment default [Abstract]
Number of Contracts			1
Recorded Investment			170
Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Financial effects of TDRs [Abstract]
Number of Contracts	2	7	30
Pre-Modification Outstanding Recorded Investment	2,234	3,361	14,367
Post-Modification Outstanding Recorded Investment	2,231	3,358	13,741
TDRs modified for which there was a payment default [Abstract]
Number of Contracts	2	5	11
Recorded Investment	464	730	2,659
Real estate segment [Member] | Construction, acquisition and development [Member]
Financial effects of TDRs [Abstract]
Number of Contracts		12	37
Pre-Modification Outstanding Recorded Investment		2,568	21,583
Post-Modification Outstanding Recorded Investment		2,546	21,159
TDRs modified for which there was a payment default [Abstract]
Number of Contracts	1	3	21
Recorded Investment	351	1,874	5,503
Real estate segment [Member] | Commercial real estate [Member]
Financial effects of TDRs [Abstract]
Number of Contracts	3	4	12
Pre-Modification Outstanding Recorded Investment	1,406	1,574	8,159
Post-Modification Outstanding Recorded Investment	1,403	1,570	8,132
TDRs modified for which there was a payment default [Abstract]
Number of Contracts		3	4
Recorded Investment		3,534	2,525
All other [Member]
Financial effects of TDRs [Abstract]
Number of Contracts	3	3	9
Pre-Modification Outstanding Recorded Investment	1,112	1,112	1,855
Post-Modification Outstanding Recorded Investment	1,112	1,112	1,692
TDRs modified for which there was a payment default [Abstract]
Number of Contracts		1	1
Recorded Investment		$ 1	$ 7