Revenue from Contracts with Customers (Schedule of Contract with Customer, Asset and Liability) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Bank card transaction fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	$ 15,160	$ 17,254	$ 14,167	$ 16,424
Trust fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	1,886	2,038	2,073	2,222
Deposit account charges and other fees
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	5,762	6,631	5,658	6,702
Consumer brokerage services
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Receivable	$ 74	$ 949	$ 632	$ 391