Loan Servicing (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Transfers and Servicing of Financial Assets [Abstract]
Serviced sold mortgage loans	$ 1,270,000	$ 1,260,000	$ 1,280,000
Serviced sold mortgage loans with recourse	4,900	6,300	5,400
Mortgage Loans Sold with Recourse, Reserve	278		$ 454
Servicing fees included in other service income	$ 800	$ 0