LOANS, Credit Quality By Past Due Status (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Aged analysis of the company's loans [Abstract]
Total Loans	$ 3,935,998		$ 3,865,576
Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	31,452		37,938
90 + Days Past Due and Still Accruing	1,349		2,355
Nonaccrual	18,272		21,928
Total Past Due	51,073		62,221
Current	3,488,345		3,356,000
Total Loans	3,539,418		3,418,221
Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	3,276		7,254
90 + Days Past Due and Still Accruing	90		393
Nonaccrual	4,725		4,432
Total Past Due	8,091		12,079
Acquired Impaired	12,108	[1]	13,761	[1]
Current	376,381		421,515
Total Loans	396,580		447,355
Consumer Mortgage [Member] | Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	13,165		16,334
90 + Days Past Due and Still Accruing	940		1,553
Nonaccrual	9,715		8,866
Total Past Due	23,820		26,753
Current	1,411,350		1,318,534
Total Loans	1,435,170		1,345,287
Consumer Mortgage [Member] | Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	1,567		1,726
90 + Days Past Due and Still Accruing	54		265
Nonaccrual	2,177		2,420
Total Past Due	3,798		4,411
Acquired Impaired	0	[1]	0	[1]
Current	88,373		98,717
Total Loans	92,171		103,128
Business Lending [Member] | Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	6,434		6,012
90 + Days Past Due and Still Accruing	66		167
Nonaccrual	6,420		12,010
Total Past Due	12,920		18,189
Current	1,003,420		984,665
Total Loans	1,016,340		1,002,854
Business Lending [Member] | Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	978		3,665
90 + Days Past Due and Still Accruing	0		80
Nonaccrual	2,130		1,681
Total Past Due	3,108		5,426
Acquired Impaired	12,108	[1]	13,761	[1]
Current	194,115		211,903
Total Loans	209,331		231,090
Consumer Indirect [Member] | Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	8,161		9,743
90 + Days Past Due and Still Accruing	181		73
Nonaccrual	0		0
Total Past Due	8,342		9,816
Current	649,325		627,541
Total Loans	657,667		637,357
Consumer Indirect [Member] | Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	232		434
90 + Days Past Due and Still Accruing	0		0
Nonaccrual	0		0
Total Past Due	232		434
Acquired Impaired	0	[1]	0	[1]
Current	6,025		9,727
Total Loans	6,257		10,161
Consumer Direct [Member] | Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	1,622		1,725
90 + Days Past Due and Still Accruing	78		71
Nonaccrual	5		8
Total Past Due	1,705		1,804
Current	158,937		154,462
Total Loans	160,642		156,266
Consumer Direct [Member] | Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	293		470
90 + Days Past Due and Still Accruing	0		0
Nonaccrual	0		0
Total Past Due	293		470
Acquired Impaired	0	[1]	0	[1]
Current	10,792		14,738
Total Loans	11,085		15,208
Home Equity [Member] | Legacy Loan [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	2,070		4,124
90 + Days Past Due and Still Accruing	84		491
Nonaccrual	2,132		1,044
Total Past Due	4,286		5,659
Current	265,313		270,798
Total Loans	269,599		276,457
Home Equity [Member] | Acquired Loans [Member]
Aged analysis of the company's loans [Abstract]
Past Due 30 - 89 Days	206		959
90 + Days Past Due and Still Accruing	36		48
Nonaccrual	418		331
Total Past Due	660		1,338
Acquired Impaired	0	[1]	0	[1]
Current	77,076		86,430
Total Loans	$ 77,736		$ 87,768

[1] Acquired impaired loans were not classified as nonperforming assets as the loans are considered to be performing under ASC 310-30.  As a result interest income, through the accretion of the difference between the carrying amount of the loans and the expected cashflows, is being recognized on all acquired impaired loans.