LOANS (Details 6) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	$ 58,200		$ 77,400
Total Loans	3,091,039	$ 2,406,877	2,290,649
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	5,732	13,821	25,708
Current Loans	56,559	123,708	165,313
Total Loans	62,291	137,529	191,021
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,067	2,421	5,203
Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	947	1,206	1,449
Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,718	10,194	19,056
Commercial, financial & agricultural [Member] | Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	128	2,802	7,974
Current Loans	702	2,744	5,375
Total Loans	830	5,546	13,349
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Commercial, financial & agricultural [Member] | Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	0	40
Commercial, financial & agricultural [Member] | Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	0	48
Commercial, financial & agricultural [Member] | Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	128	2,802	7,886
Real Estate - construction & development [Member] | Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	118	1,729	4,024
Current Loans	3,102	5,883	10,242
Total Loans	3,220	7,612	14,266
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Real Estate - construction & development [Member] | Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	114	96	1,548
Real Estate - construction & development [Member] | Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	4	0	68
Real Estate - construction & development [Member] | Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	1,633	2,408
Commercial And Farmland [Member] | Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	907	3,439	8,126
Current Loans	12,781	67,787	95,273
Total Loans	13,688	71,226	103,399
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Commercial And Farmland [Member] | Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	906	170	1,003
Commercial And Farmland [Member] | Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	205	550
Commercial And Farmland [Member] | Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	1	3,064	6,573
Residential Real Estate [Member] | Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	4,579	5,814	5,535
Current Loans	39,878	47,224	54,300
Total Loans	44,457	53,038	59,835
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Residential Real Estate [Member] | Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	1,047	2,155	2,612
Residential Real Estate [Member] | Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	943	1,001	783
Residential Real Estate [Member] | Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,589	2,658	2,140
Consumer installment [Member] | Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	37	49
Current Loans	96	70	123
Total Loans	96	107	172
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Consumer installment [Member] | Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	0	0
Consumer installment [Member] | Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	0	0	0
Consumer installment [Member] | Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	$ 0	$ 37	$ 49