OTHER BORROWINGS (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Other Borrowings [Line Items]
Other borrowings	$ 373,461	$ 39,000	$ 39,000
Daily Rate Credit From Federal Home Loan Bank [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	227,500	0	0
Fixed Rate Advance [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	100,000	0	0
Fixed Rate Advance One [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	4,008	0	0
Fixed Rate Advance Two [Member]
Other Borrowings [Line Items]
Advance from correspondent bank	5,009	0	0
Revolving Credit Facility One [Member]
Other Borrowings [Line Items]
Long-term Line of Credit	860	0	0
Revolving Credit Facility [Member]
Other Borrowings [Line Items]
Long-term Line of Credit	36,000	24,000	24,000
Correspondent Bank Advances [Member]
Other Borrowings [Line Items]
Other borrowings	84	0	0
Subordinated Debt One [Member]
Other Borrowings [Line Items]
Subordinated debt issued	$ 0	$ 15,000	$ 15,000