Loans (Analysis of Nonaccrual Loans with no ACL) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Amortized Cost of Nonaccrual Loans, No Allowance	$ 9,819	$ 20,911
Commercial Real Estate
Financing Receivable, Nonaccrual [Line Items]
Amortized Cost of Nonaccrual Loans, No Allowance	932	6,393
Commercial Business
Financing Receivable, Nonaccrual [Line Items]
Amortized Cost of Nonaccrual Loans, No Allowance	5,131	6,382
Agriculture
Financing Receivable, Nonaccrual [Line Items]
Amortized Cost of Nonaccrual Loans, No Allowance	$ 3,756	$ 8,136