Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012 Peoples	Apr. 24, 2012 Peoples	Dec. 31, 2012 Savannah	Dec. 13, 2012 Savannah	Dec. 31, 2013 First Financial	Jul. 26, 2013 First Financial
Goodwill and Other Intangible Assets
Impairment of Goodwill	$ 0
Goodwill
Balance at beginning of period	103,292	62,888		4,007		36,397		216,137
Additions, Goodwill from acquisition or merger			4,007		36,397		216,137
Balance at end of period	$ 319,429	$ 62,888		$ 4,007		$ 36,397		$ 216,137