Other Real Estate Owned and Property Acquired in Settlement of Loans (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) asset	Dec. 31, 2015 USD ($)		Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Repossessed Assets [Abstract]
Decrease in total OREO and property acquired	$ (2,400)
Total property acquired in settlement of loans	$ 14,158	$ 16,583	[1]
Percent of total nonperforming assets	43.00%	47.00%
Number of assets under contract for sale | asset	11
Net carrying value of assets under contract for sale	$ 3,400
Mortgage loans in process of foreclosure	2,800
Financing Receivable, Modifications [Line Items]
Real estate acquired in settlement of loans	13,845	$ 16,251		$ 20,833	$ 20,122
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Real estate acquired in settlement of loans	$ 3,200

[1] Derived from audited consolidated financial statements