Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real Estate Properties [Line Items]
Mortgage Loans in Process of Foreclosure, Amount			$ 26,900	$ 21,800
Covered
Beginning Balance	$ 472	$ 6,817
Additions	260	4,888
Sales	(369)	(937)
Write-downs	(92)	(580)
Other Real Estate Covered Transfers		(9,716)
Ending Balance	271	472
Noncovered
Beginning balance	60,759	58,742
Additions	34,720	30,384
Sales	(37,997)	(33,241)
Write-downs	(6,711)	(6,387)
Other Real Estate Non Covered Transfers		9,716
Ending Balance	50,826	60,759
Total
Beginning balance	51,097	61,231	51,097	61,231	$ 65,559
Additions	34,980	35,272
Sales	(38,366)	(34,178)
Write-downs	(6,803)	(6,967)
Other Real Estate Transfers		0
Ending balance	51,097	61,231
Cordia Bancorp Inc.
Covered
Additions		0
Noncovered
Additions		1,200
Total
Additions		1,200
First CornerStone Bank
Covered
Additions		0
Noncovered
Additions		400
Total
Additions		400
Guaranty Bank
Covered
Additions	0
Noncovered
Additions	100
Total
Additions	100
Mortgage
Total
Beginning balance	19,766	15,019	$ 19,766	$ 15,019
Ending balance	$ 19,766	$ 15,019