Revenue From Contracts with Customers (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)	[1]	$ 219,997	$ 218,297		$ 188,383
Insurance commission and fee income		21,043	19,065		16,357
Bank owned life insurance income	[1]	3,185	3,787		3,981
Net gain on sales of investment securities		0	30	[1]	145	[1]
Net gain on mortgage banking activities	[1]	3,689	4,412		15,141
Other income	[2]	2,882	4,500		4,482
Noninterest income		76,824	77,885		83,224
Trust fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		7,732	7,743		8,403
Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		7,048	6,175		5,504
Investment advisory commission and fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		18,864	19,748		18,936
Other service fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income	[2]	12,381	12,425		10,275
Operating Segments [Member] | Banking [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)	[1]	229,017	224,038		195,498
Insurance commission and fee income		0	0		0
Bank owned life insurance income	[1]	3,067	3,672		3,869
Net gain on sales of investment securities	[1]		30		145
Net gain on mortgage banking activities	[1]	3,689	4,412		15,141
Other income	[2]	2,895	4,697		4,292
Noninterest income		28,416	30,339		38,419
Operating Segments [Member] | Banking [Member] | Trust fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Banking [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		7,048	6,175		5,504
Operating Segments [Member] | Banking [Member] | Investment advisory commission and fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Banking [Member] | Other service fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income	[2]	11,717	11,353		9,468
Operating Segments [Member] | Wealth Management [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)	[1]	67	20		0
Insurance commission and fee income		0	0		0
Bank owned life insurance income	[1]	0	0		0
Net gain on sales of investment securities	[1]		0		0
Net gain on mortgage banking activities	[1]	0	0		0
Other income	[2]	0	0		0
Noninterest income		26,802	27,698		27,506
Operating Segments [Member] | Wealth Management [Member] | Trust fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		7,732	7,743		8,403
Operating Segments [Member] | Wealth Management [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Wealth Management [Member] | Investment advisory commission and fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		18,864	19,748		18,936
Operating Segments [Member] | Wealth Management [Member] | Other service fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income	[2]	206	207		167
Operating Segments [Member] | Insurance [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)	[1]	0	0		0
Insurance commission and fee income		21,043	19,065		16,357
Bank owned life insurance income	[1]	0	0		0
Net gain on sales of investment securities	[1]		0		0
Net gain on mortgage banking activities	[1]	0	0		0
Other income	[2]	0	0		0
Noninterest income		21,501	19,930		16,997
Operating Segments [Member] | Insurance [Member] | Trust fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Insurance [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Insurance [Member] | Investment advisory commission and fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Operating Segments [Member] | Insurance [Member] | Other service fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income	[2]	458	865		640
Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)		(9,087)	(5,761)		(7,115)
Noninterest income		105	(82)		302
Other [Member] | Other Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net interest income (expense)	[1]	(9,087)	(5,761)		(7,115)
Insurance commission and fee income		0	0		0
Bank owned life insurance income	[1]	118	115		112
Net gain on sales of investment securities	[1]		0		0
Net gain on mortgage banking activities	[1]	0	0		0
Other income	[2]	(13)	(197)		190
Noninterest income		105	(82)		302
Other [Member] | Other Segments [Member] | Trust fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Other [Member] | Other Segments [Member] | Service charges on deposit accounts
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Other [Member] | Other Segments [Member] | Investment advisory commission and fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income		0	0		0
Other [Member] | Other Segments [Member] | Other service fee income
Segment Reporting, Revenue Reconciling Item [Line Items]
Noninterest income	[2]	$ 0	$ 0		$ 0

[1] Net interest income as well as many other revenues for financial assets and liabilities including loans, leases, securities, and derivatives are excluded from the scope of FASB ASC 606 "Revenue from Contracts with Customers" ("FASB ASC 606"). Noninterest income streams that are out of scope of FASB ASC 606 include bank owned life insurance income, sales of investment securities and mortgage banking activities.

[2] Other service fee income and other income include certain items that are in scope and certain items that are out of scope of FASB ASC 606 as described further in the following paragraphs.