Residential Mortgage Servicing Rights (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 31, 2019
Payments for (Proceeds from) Mortgage Servicing Rights [Abstract]
Sale of MSR assets	$ 0	$ 0	$ (34,401)
Balance Of Loans Serviced For Others Sold				$ 3,400,000
Transfers and Servicing [Abstract]
Servicing	$ 36,836	$ 35,706	$ 42,199