Revenue from Contract with Customer (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Personal trust and agency accounts income	$ 10,297	$ 10,091	$ 10,264
Employee benefit and retirement-related accounts income	9,894	9,698	9,705
Investment management and investment advisory agency accounts income	13,242	12,442	12,620
Other income from fiduciary activities	2,041	1,860	1,860
Non-sufficient funds (NSF) fees	3,744	6,095	5,244
Demand deposit account (DDA) charges	4,229	3,439	3,074
Other service charges on deposit accounts	472	557	514
Credit card other service income	2,799	2,808	2,563
HELOC other service income	369	397	389
Installment other service income	177	163	148
Real estate other service income	5,795	9,952	24,907
Commercial other service income	1,160	1,975	1,805
Debit card fee income	26,522	26,046	25,865
Bank Owned Life Insurance Income	5,338	6,100	4,897
ATM Fees	2,178	2,273	2,379
Gains (Losses) on Sales of Other Real Estate	(3)	5,611	(4)
Real Estate Owned, Valuation Allowance, Valuation Increase	60	12,039	64
Debt Securities, Available-for-sale, Realized Loss	(7,875)	0	0
Gain on equity securities, net	971	2,955	5,011
Other components of net periodic benefit income	7,572	12,108	8,152
Noninterest Income, Other	3,652	9,326	10,487
Noninterest Income	92,634	135,935	129,944
Bank Servicing [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income, Other	10,300	15,300	29,800
Within Scope [Domain]
Disaggregation of Revenue [Line Items]
Noninterest Income, Other	5,200	5,600	5,300
Out of Scope [Domain]
Disaggregation of Revenue [Line Items]
Noninterest Income, Other	$ 5,100	$ 9,700	$ 24,500