Acquired Loans Part 4 (Details) (USD $)	6 Months Ended		12 Months Ended			6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2013 BancTrust Financial Group, Inc. [Member]	Feb. 15, 2013 BancTrust Financial Group, Inc. [Member]	Jun. 30, 2014 Covered Loans [Member]	Jun. 30, 2013 Covered Loans [Member]	Jun. 30, 2014 Noncovered Loans [Member]	Jun. 30, 2013 Noncovered Loans [Member]
Allowance for loan loss [Abstract]
Balance, beginning	$ 9,636,000	$ 6,075,000	$ 6,075,000			$ 2,387,000	$ 4,190,000	$ 7,249,000	$ 1,885,000
Provision for loan losses, acquired loans	3,847,000	(1,422,000)				(52,000)	(1,328,000)	3,899,000	(94,000)
Loans charged-off	(3,017,000)	(2,444,000)				(865,000)	(302,000)	(2,152,000)	(2,142,000)
Recoveries	713,000	481,000				(61,000)	18,000	774,000	463,000
Net charge-offs	(2,304,000)	(1,963,000)				(926,000)	(284,000)	(1,378,000)	(1,679,000)
Balance, ending	11,179,000	2,690,000	9,636,000			1,409,000	2,578,000	9,770,000	112,000
Revolving credit agreements acquired					153,900,000
Nonaccrual loans not accounted for under FASB ASC Topic 310 30	1,200,000		2,400,000
Decrease in acquired non covered loans as measurement period adjustment			$ 6,800,000	$ 6,800,000