LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Tennessee Commerce Bank ("TCB")	Dec. 31, 2012 Tennessee Commerce Bank ("TCB")	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans Contractual Amount	Dec. 31, 2013 First Commercial Bank ("FCB")	Dec. 31, 2012 First Commercial Bank ("FCB")	Sep. 07, 2012 First Commercial Bank ("FCB") Loans	Sep. 07, 2012 First Commercial Bank ("FCB") Loans Contractual Amount	Dec. 31, 2013 TCB and FCB acquisitions	Dec. 31, 2012 TCB and FCB acquisitions
2012 FDIC-Assisted Acquisitions
Financial assets					$ 57,276	$ 79,112			$ 130,351	$ 171,744
Contractually-required principal			34,406	42,188			85,184	139,156			119,590	181,344
Non-accretable difference			(3,884)	(10,393)			(15,194)	(28,870)			(19,078)	(39,263)
Accretable difference			(1,757)	(831)			(2,293)	(2,634)			(4,050)	(3,465)
Total carrying value of loans	$ 2,589,792	$ 2,650,197	$ 28,765	$ 30,964			$ 67,697	$ 107,652			$ 96,462	$ 138,616