LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 6) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 2,956,662	$ 2,899,037
Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	18,176	9,985
Related Allowance	550	390
Unpaid Principal Balance	18,231	15,802
Non-PCI Loans | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,557	1,472
Non-PCI Loans | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	14,619	8,513
Non-PCI Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	11,760	5,398
Related Allowance	183	158
Unpaid Principal Balance	11,796	5,330
Non-PCI Loans | Commercial real estate | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	948	885
Non-PCI Loans | Commercial real estate | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,812	4,513
Non-PCI Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,105	2,343
Related Allowance	160	229
Unpaid Principal Balance	3,105	2,718
Non-PCI Loans | Commercial and industrial | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	725	525
Non-PCI Loans | Commercial and industrial | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,380	1,818
Non-PCI Loans | Construction and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	179	910
Related Allowance	0	0
Unpaid Principal Balance	182	1,971
Non-PCI Loans | Construction and development | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Non-PCI Loans | Construction and development | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	179	910
Non-PCI Loans | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,112	928
Related Allowance	207	0
Unpaid Principal Balance	3,128	3,863
Non-PCI Loans | Residential real estate | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,884	0
Non-PCI Loans | Residential real estate | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,228	928
Non-PCI Loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	20	406
Related Allowance	0	3
Unpaid Principal Balance	20	1,920
Non-PCI Loans | Home equity | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	62
Non-PCI Loans | Home equity | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 20	344
Non-PCI Loans | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Related Allowance		0
Unpaid Principal Balance		0
Non-PCI Loans | Other consumer | Recorded Investment With a Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Non-PCI Loans | Other consumer | Recorded Investment With no Recorded Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 0