LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES - TDR ACCRUAL STATUS (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) loan	Dec. 31, 2014 USD ($) loan	Dec. 31, 2013 USD ($) loan
Troubled Debt Restructurings disclosures
Number of Loans | loan	347	378	378
Recorded Investment | $	$ 49,580	$ 65,266	$ 65,266
Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	307	324
Recorded Investment | $	$ 35,209	$ 39,132
Commercial real estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	26	38
Recorded Investment | $	$ 11,332	$ 19,532
Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans | loan	8	8
Recorded Investment | $	$ 2,717	$ 2,627
Commercial & Industrial
Troubled Debt Restructurings disclosures
Number of Loans | loan	6	8
Recorded Investment | $	$ 322	$ 3,975
Loans on nonaccrual status
Troubled Debt Restructurings disclosures
Number of Loans | loan	86	84
Recorded Investment | $	$ 12,472	$ 14,186
Minimum period for which TDRs continue to be reported as non-performing loans	6 months
Loans on nonaccrual status | Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	74	74
Recorded Investment | $	$ 7,365	$ 7,166
Loans on nonaccrual status | Commercial real estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	9	8
Recorded Investment | $	$ 3,324	$ 5,030
Loans on nonaccrual status | Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans | loan	2	2
Recorded Investment | $	$ 1,589	$ 1,990
Loans on nonaccrual status | Commercial & Industrial
Troubled Debt Restructurings disclosures
Number of Loans | loan	1
Recorded Investment | $	$ 194
Accrual Loans
Troubled Debt Restructurings disclosures
Number of Loans | loan	261	294
Recorded Investment | $	$ 37,108	$ 51,080
Accrual Loans | Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	233	250
Recorded Investment | $	$ 27,844	$ 31,966
Accrual Loans | Commercial real estate
Troubled Debt Restructurings disclosures
Number of Loans | loan	17	30
Recorded Investment | $	$ 8,008	$ 14,502
Accrual Loans | Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans | loan	6	6
Recorded Investment | $	$ 1,128	$ 637
Accrual Loans | Commercial & Industrial
Troubled Debt Restructurings disclosures
Number of Loans | loan	5	8
Recorded Investment | $	$ 128	$ 3,975