Foreclosed Assets Foreclosed Assets (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Business Acquisition [Line Items]
Other Real Estate Owned Net Noncovered including Foreclosed Assets	$ 22,120	$ 43,721	$ 55,891		$ 56,414
Other Real Estate [Roll Forward]
Other Foreclosed Assets Acquired	0	6,382	13,772
Loans transferred to foreclosed assets	13,472	9,806	15,416
SEC Schedule III, Real Estate, Acquisitions Through Foreclosures			19,470
Provision for Other Real Estate Owned and Foreclosed Assets	5,228	7,307	2,515
Other Real Estate Owned Foreclosed Assets CORES	(29,845)	(21,051)	(31,289)
Foreclosed Asset Payments Due To Third Parties	0	0	$ 39	[1]
Foreclosed assets, net	$ 22,120	$ 43,721

[1] Represents amounts due to participants and for guarantees, property taxes or other prior lien positions.