Segment Reporting - Schedule of Segment Reporting (Details)		12 Months Ended
		Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments (in segments) | segment		3
Segment Reporting Information [Line Items]
Interest income		$ 371,730,000	$ 252,193,000	$ 209,731,000
Interest expense		151,733,000	33,896,000	21,348,000
Net interest income (expense)	[1]	219,997,000	218,297,000	188,383,000
Provision (reversal of provision) for credit losses		10,770,000	12,198,000	(10,132,000)
Noninterest income		76,824,000	77,885,000	83,224,000
Noninterest expense		197,362,000	186,774,000	167,409,000
Income before income taxes		88,689,000	97,210,000	114,330,000
Income tax expense		17,585,000	19,090,000	22,529,000
Net income (loss)		71,104,000	78,120,000	91,801,000
Total assets		7,780,628,000	7,222,016,000	7,122,421,000
Net capital expenditures		4,847,000	(1,624,000)	5,878,000
Other [Member]
Segment Reporting Information [Line Items]
Interest income		38,000	37,000	34,000
Interest expense		9,125,000	5,798,000	7,149,000
Net interest income (expense)		(9,087,000)	(5,761,000)	(7,115,000)
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		105,000	(82,000)	302,000
Noninterest expense		2,770,000	1,623,000	3,791,000
Income before income taxes		(11,752,000)	(7,466,000)	(10,604,000)
Income tax expense		(2,751,000)	(1,983,000)	(2,668,000)
Net income (loss)		(9,001,000)	(5,483,000)	(7,936,000)
Total assets		18,224,000	14,322,000	21,744,000
Net capital expenditures		479,000	234,000	69,000
Banking [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		371,625,000	252,136,000	209,697,000
Interest expense		142,608,000	28,098,000	14,199,000
Net interest income (expense)	[1]	229,017,000	224,038,000	195,498,000
Provision (reversal of provision) for credit losses		10,770,000	12,198,000	(10,132,000)
Noninterest income		28,416,000	30,339,000	38,419,000
Noninterest expense		158,481,000	151,700,000	133,134,000
Income before income taxes		89,127,000	92,211,000	112,207,000
Income tax expense		18,440,000	18,754,000	22,574,000
Net income (loss)		70,687,000	73,457,000	89,633,000
Total assets		7,656,154,000	7,104,727,000	7,005,952,000
Net capital expenditures		4,193,000	(2,474,000)	5,772,000
Banking [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		(945,000)	(1,732,000)	(1,292,000)
Wealth Management [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		67,000	20,000	0
Interest expense		0	0	0
Net interest income (expense)	[1]	67,000	20,000	0
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		26,802,000	27,698,000	27,506,000
Noninterest expense		20,217,000	17,704,000	17,513,000
Income before income taxes		6,193,000	9,171,000	9,337,000
Income tax expense		768,000	1,641,000	1,916,000
Net income (loss)		5,425,000	7,530,000	7,421,000
Total assets		57,715,000	58,239,000	54,076,000
Net capital expenditures		19,000	534,000	17,000
Wealth Management [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		459,000	843,000	656,000
Insurance [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		0	0	0
Interest expense		0	0	0
Net interest income (expense)	[1]	0	0	0
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		21,501,000	19,930,000	16,997,000
Noninterest expense		15,894,000	15,747,000	12,971,000
Income before income taxes		5,121,000	3,294,000	3,390,000
Income tax expense		1,128,000	678,000	707,000
Net income (loss)		3,993,000	2,616,000	2,683,000
Total assets		48,535,000	44,728,000	40,649,000
Net capital expenditures		156,000	82,000	20,000
Insurance [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		$ 486,000	$ 889,000	$ 636,000

[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.