2012 FDIC-ASSISTED ACQUISITIONS (Details) (USD $)	12 Months Ended	0 Months Ended			3 Months Ended	6 Months Ended	12 Months Ended		0 Months Ended																			0 Months Ended	3 Months Ended		12 Months Ended			0 Months Ended
	Dec. 31, 2012 item	Feb. 15, 2012 Tennessee Commerce Bank ("TCB")	Jan. 30, 2012 Tennessee Commerce Bank ("TCB")	Jan. 27, 2012 Tennessee Commerce Bank ("TCB")	Mar. 31, 2012 Tennessee Commerce Bank ("TCB")	Sep. 30, 2012 Tennessee Commerce Bank ("TCB")	Dec. 31, 2012 Tennessee Commerce Bank ("TCB")	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") As Previously Reported - Fair Value Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") 2012 Recast Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Deposits: Non interest-bearing	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Deposits: Non interest-bearing As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Deposits: Interest-bearing	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Deposits: Interest-bearing As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Deposits: Interest-bearing As Previously Reported - Fair Value Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Total deposits	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Total deposits As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Total deposits As Previously Reported - Fair Value Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans to be repurchased by the FDIC, net of discount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans to be repurchased by the FDIC, net of discount As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans to be repurchased by the FDIC, net of discount As Previously Reported - Fair Value Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans As Previously Reported - Contractual Amount	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans As Previously Reported - Fair Value Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Loans 2012 Recast Adjustments	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Federal Home Loan Bank stock, at cost	Jan. 27, 2012 Tennessee Commerce Bank ("TCB") Federal Home Loan Bank stock, at cost As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB")	Dec. 31, 2012 First Commercial Bank ("FCB")	Sep. 30, 2012 First Commercial Bank ("FCB")	Dec. 31, 2013 First Commercial Bank ("FCB")	Dec. 31, 2012 First Commercial Bank ("FCB")	Sep. 07, 2012 First Commercial Bank ("FCB") As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") As Previously Reported - Fair Value Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") 2012 & 2013 Recast Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Deposits: Non interest-bearing	Sep. 07, 2012 First Commercial Bank ("FCB") Deposits: Non interest-bearing As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") Deposits: Interest-bearing	Sep. 07, 2012 First Commercial Bank ("FCB") Deposits: Interest-bearing As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") Deposits: Interest-bearing As Previously Reported - Fair Value Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Total deposits	Sep. 07, 2012 First Commercial Bank ("FCB") Total deposits As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") Total deposits As Previously Reported - Fair Value Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Federal Home Loan Bank advances	Sep. 07, 2012 First Commercial Bank ("FCB") Federal Home Loan Bank advances As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") Federal Home Loan Bank advances As Previously Reported - Fair Value Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Loans	Sep. 07, 2012 First Commercial Bank ("FCB") Loans As Previously Reported - Contractual Amount	Sep. 07, 2012 First Commercial Bank ("FCB") Loans As Previously Reported - Fair Value Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Loans 2012 & 2013 Recast Adjustments	Sep. 07, 2012 First Commercial Bank ("FCB") Federal Home Loan Bank stock, at cost	Sep. 07, 2012 First Commercial Bank ("FCB") Federal Home Loan Bank stock, at cost As Previously Reported - Contractual Amount
2012 FDIC-ASSISTED ACQUISITIONS
Number of failed institutions acquired in FDIC-assisted transactions	2
Fdic - assisted acquisitions of failed banks
Notional assets acquired								$ 221,126,000																									$ 214,866,000
Payments received from FDIC	921,247,000	14,000,000	771,000,000
Bargain purchase gain					27,900,000	(285,000)	27,614,000		27,899,000																				712,000	27,100,000	1,324,000	27,824,000		27,112,000
Assets acquired:
Cash and cash equivalents				61,852,000				61,943,000	(89,000)	(2,000)																		10,524,000					10,524,000
Securities available for sale				42,646,000				42,646,000																				12,002,000					12,002,000
Financial assets																			17,003,000	19,800,000	(2,797,000)	57,276,000	79,112,000	(22,666,000)	830,000	2,491,000	2,491,000																				130,351,000	171,744,000	(44,214,000)	2,821,000	407,000	407,000
Other real estate owned				9,717,000				14,189,000	(3,359,000)	(1,113,000)																		10,186,000					19,360,000	(8,389,000)	(785,000)
Core deposit intangible							64,000		64,000																				559,000			559,000		559,000
Discount								(56,970,000)	56,970,000																								(79,412,000)	79,412,000
FDIC settlement receivable				784,545,000				(784,545,000)																				64,326,000					(64,326,000)
Other assets and accrued interest receivable				885,000				945,000	(60,000)																			734,000					829,000	(95,000)
Total assets acquired				976,479,000				948,701,000	28,063,000	(285,000)																		229,089,000					199,780,000	27,273,000	2,036,000
Liabilities assumed:
Financial liabilities											19,754,000	19,754,000	927,695,000	927,641,000	54,000	947,449,000	947,395,000	54,000																		7,197,000	7,197,000	189,054,000	189,057,000	(3,000)	196,251,000	196,254,000	(3,000)	3,065,000	3,002,000	63,000
Accrued income taxes payable				9,888,000					9,988,000	(100,000)																		10,418,000						9,706,000	712,000
Other liabilities and accrued interest payable				1,416,000				1,306,000	110,000																			625,000					524,000	101,000
Total liabilities assumed				958,753,000				948,701,000	10,152,000	(100,000)																		210,359,000					199,780,000	9,867,000	712,000
Equity:
Bargain purchase gain, net of taxes				17,726,000					17,911,000	(185,000)																		18,730,000						17,406,000	1,324,000
Total liabilities assumed and equity				$ 976,479,000				$ 948,701,000	$ 28,063,000	$ (285,000)																		$ 229,089,000					$ 199,780,000	$ 27,273,000	$ 2,036,000