ASSETS ACQUIRED IN FDIC-ASSISTED ACQUISITIONS (Details)	6 Months Ended
	Jun. 30, 2017 Number
American United Bank (AUB) [Member]
Business Acquisition [Line Items]
Branches	1
Date Acquired	Oct. 23, 2009
United Security Bank (USB) [Member]
Business Acquisition [Line Items]
Branches	2
Date Acquired	Nov. 06, 2009
Satilla Community Bank (SCB) [Member]
Business Acquisition [Line Items]
Branches	1
Date Acquired	May 14, 2010
First Bank of Jacksonville (FBJ) [Member]
Business Acquisition [Line Items]
Branches	2
Date Acquired	Oct. 22, 2010
Tifton Banking Company (TBC) [Member]
Business Acquisition [Line Items]
Branches	1
Date Acquired	Nov. 12, 2010
Darby Bank & Trust (DBT) [Member]
Business Acquisition [Line Items]
Branches	7
Date Acquired	Nov. 12, 2010
High Trust Bank (HTB) [Member]
Business Acquisition [Line Items]
Branches	2
Date Acquired	Jul. 15, 2011
One Georgia Bank (OGB) [Member]
Business Acquisition [Line Items]
Branches	1
Date Acquired	Jul. 15, 2011
Central Bank of Georgia (CBG) [Member]
Business Acquisition [Line Items]
Branches	5
Date Acquired	Feb. 24, 2012
Montgomery Bank & Trust (MBT) [Member]
Business Acquisition [Line Items]
Branches	2
Date Acquired	Jul. 06, 2012