Revenue from Contracts with Customers (Schedule of Contract with Customer, Asset and Liability) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Bank card transaction fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	$ 14,171	$ 16,424	$ 12,437	$ 14,199
Trust fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	2,094	2,222	2,017	2,071
Deposit account charges and other fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	5,452	6,702	5,281	6,933
Consumer brokerage services
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	$ 324	$ 391	$ 323	$ 432