Other Real Estate Owned and Property Acquired in Settlement of Loans (Real Estate Owned) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) assets	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) assets	Sep. 30, 2014 USD ($)
Real Estate Acquired Through Foreclosure [Roll Forward]
Real estate acquired in settlement of loans, beginning of period	$ 19,717	$ 21,742	$ 20,122	$ 28,353
Plus: New real estate acquired in settlement of loans	766	1,643	4,199	2,894
Less: Sales of real estate acquired in settlement of loans	(1,110)	(3,400)	(4,263)	(10,328)
Less: Write-downs and net loss on sales charged to expense	(494)	195	(1,179)	(739)
Real estate acquired in settlement of loans, end of period	$ 18,879	$ 20,180	$ 18,879	$ 20,180
Number of assets under contract for sale | assets	18		18
Net carrying value of assets under contract for sale	$ 2,700		$ 2,700
Mortgage loans collateralized by residential real estate properties that are in the process of foreclosure	1,900		1,900
Real estate - mortgage, 1-4 family residential [Member]
Real Estate Acquired Through Foreclosure [Roll Forward]
Real estate acquired in settlement of loans, end of period	$ 3,400		$ 3,400