Other Real Estate Owned (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Real Estate Properties [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 21,100		$ 15,600
Covered
Beginning balance	6,817	$ 22,982
Additions	4,734	5,833
Sales	(781)	(12,962)
Writedowns	(570)	(857)
Other Real Estate Covered Transfers	(9,716)	(2,106)
Ending balance	484	12,890
Noncovered
Beginning balance	58,742	70,454
Additions	16,546	24,558
Sales	(14,728)	(34,324)
Writedowns	(3,815)	(2,436)
Other Real Estate Non Covered Transfers	9,716	2,106
Ending balance	66,605	60,358
Total
Beginning balance	65,559	93,436
Additions	21,280	30,391
Sales	(15,509)	(47,286)
Writedowns	(4,385)	(3,293)
Other Real Estate Transfers	0	0
Ending balance	67,089	$ 73,248
Mortgage
Total
Beginning balance	16,100
Ending balance	13,100
First CornerStone Bank
Covered
Additions	0
Noncovered
Additions	144
Total
Additions	$ 144