Loan Servicing (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Transfers and Servicing of Financial Assets [Abstract]
Serviced sold mortgage loans	$ 2,140,000,000	$ 2,040,000,000.00	$ 2,130,000,000
Serviced sold mortgage loans with recourse	3,400,000	2,300,000	3,300,000
Servicing fees included in other service income	1,400,000	$ 1,300,000
Mortgage Loans Sold with Recourse, Reserve	$ 61,000		$ 57,000