Borrowings Borrowings (Summary Of Advances Payable To the Federal Home Loan Bank) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Federal Home Loan Bank, Advances, Maturity, Rolling Year [Abstract]
FHLB advances maturing within 1 year, Total Outstanding	$ 25,000	$ 25,000
FHLB advances maturing after 1 but within 2 years, Total Outstanding	100	110
FHLB advances maturing after 2 but within 3 years, Total Outstanding	208	215
FHLB advances maturing after 3 but within 4 years, Total Outstanding	100,000	50,000
FHLB advances maturing after 4 but within 5 years, Total Outstanding	0	50,000
FHLB advances maturing after 5 years, Total Outstanding	13,136	7,839
Federal Home Loan Bank, Advances	$ 138,444	$ 133,164
Federal Home Loan Bank, Advances, Weighted Average Interest Rate [Abstract]
FHLB advances maturing within 1 year, Weighted Average Contractual Coupon Rate (as a percent)	0.33%	0.38%
FHLB advances maturing after 1 but within 2 years, Weighted Average Contractual Coupon Rate (as a percent)	0.00%	0.00%
FHLB advances maturing after 2 but within 3 years, Weighted Average Contractual Coupon Rate (as a percent)	2.95%	2.95%
FHLB advances maturing after 3 but within 4 years, Weighted Average Contractual Coupon Rate (as a percent)	1.50%	1.59%
FHLB advances maturing after 4 but within 5 years, Weighted Average Contractual Coupon Rate (as a percent)	0.00%	1.42%
FHLB advances maturing after 5 years, Weighted Average Contractual Coupon Rate (as a percent)	2.56%	2.66%
Federal Home Loan Bank, Advances, Weighted Average Contractual Coupon Rate (as a percent)	1.39%	1.36%
Aggregate carrying value of assets pledged as collateral	$ 7,004,625	$ 7,387,054
Remaining borrowing capacity	$ 4,528,972	$ 4,689,642