Other Real Estate and Covered Other Real Estate - Changes and Gains, Net on Other Real Estate, Excluding Covered Other Real Estate (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation Of Carrying Amount Of Real Estate Investments Roll Forward
Balance at beginning of period		$ 92,509	$ 106,539	$ 78,189
Additions	[1]	33,396	37,428	80,256
Disposals		(45,826)	(43,802)	(45,545)
Write-downs		(2,902)	(7,656)	(6,361)
Balance at end of period		77,177	92,509	106,539
Gain (loss), net on the sale of other real estate included in ORE/Foreclosure expense		$ 3,995	$ 3,697	$ (881)

[1] (1) For the year ended December 31, 2013, additions to other real estate includes $40.1 million of other real estate acquired from Trustmark’s merger with BancTrust on February 15, 2013.