Other Real Estate Owned (Summary of Other Real Estate Owned) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Other Real Estate Owned [Line Items]
Balance, beginning of period	$ 22,190	$ 35,927
Other Real Estate Owned, established through acquisition	0	2,752
Transfers in	8,688	10,200
Valuation adjustments	(1,986)	(4,039)
Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans	19,292	28,559
Net realized gain on sale of other real estate owned	4,138	5,909
Balance, end of period	13,738	$ 22,190
Mortgage Loans in Process of Foreclosure, Amount	1,300
Real estate: One-to-four family residential [Member]
Other Real Estate Owned [Line Items]
Balance, end of period	$ 2,400