OTHER BORROWINGS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Borrowings [Line Items]
Other borrowings	$ 492,321	$ 39,000
Daily Rate Credit From Federal Home Loan Bank [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	150,000	0
Fixed Rate Advance [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	292,500	0
Fixed Rate Advance One [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	4,002	0
Fixed Rate Advance Two [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	5,006	0
Revolving Credit Facility [Member]
Other Borrowings [Line Items]
Long-term Line of Credit	38,000	24,000
Revolving Credit Facility One [Member]
Other Borrowings [Line Items]
Long-term Line of Credit	850	0
Correspondent Bank Advances [Member]
Other Borrowings [Line Items]
Other borrowings	77	0
Correspondent Bank Advances One [Member]
Other Borrowings [Line Items]
Other borrowings	1,886	0
Subordinated Debt One [Member]
Other Borrowings [Line Items]
Subordinated debt issued	$ 0	$ 15,000