Segment Reporting - Schedule of Segment Reporting (Details)		12 Months Ended
		Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments (in segments) | segment		3
Segment Reporting Information [Line Items]
Interest income		$ 252,193,000	$ 209,731,000	$ 203,945,000
Interest expense		33,896,000	21,348,000	29,584,000
Net interest income (expense)	[1]	218,297,000	188,383,000	174,361,000
Provision (reversal of provision) for credit losses		12,198,000	(10,132,000)	40,794,000
Noninterest income		77,885,000	83,224,000	78,328,000
Noninterest expense		186,774,000	167,409,000	154,998,000
Income before income taxes		97,210,000	114,330,000	56,897,000
Income tax expense		19,090,000	22,529,000	9,981,000
Net income (loss)		78,120,000	91,801,000	46,916,000
Total assets		7,222,016,000	7,122,421,000	6,336,496,000
Net capital expenditures		(1,624,000)	5,878,000	3,749,000
Other [Member]
Segment Reporting Information [Line Items]
Interest income		37,000	34,000	33,000
Interest expense		5,798,000	7,149,000	6,762,000
Net interest income (expense)		(5,761,000)	(7,115,000)	(6,729,000)
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		(82,000)	302,000	(78,000)
Noninterest expense		1,623,000	3,791,000	1,005,000
Income before income taxes		(7,466,000)	(10,604,000)	(7,812,000)
Income tax expense		(1,983,000)	(2,668,000)	(1,555,000)
Net income (loss)		(5,483,000)	(7,936,000)	(6,257,000)
Total assets		14,322,000	21,744,000	17,608,000
Net capital expenditures		234,000	69,000	33,000
Banking [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	[1]	225,249,000	195,607,000	181,477,000
Noninterest income		30,339,000	38,419,000	37,910,000
Banking [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		252,129,000	209,695,000	203,904,000
Interest expense		26,880,000	14,088,000	22,427,000
Net interest income (expense)		225,249,000	195,607,000	181,477,000
Provision (reversal of provision) for credit losses		12,198,000	(10,132,000)	40,794,000
Noninterest income		30,339,000	38,419,000	37,911,000
Noninterest expense		151,700,000	133,134,000	126,379,000
Income before income taxes		93,422,000	112,316,000	53,318,000
Income tax expense		18,754,000	22,574,000	9,184,000
Net income (loss)		74,668,000	89,742,000	44,134,000
Total assets		7,104,727,000	7,005,952,000	6,234,448,000
Net capital expenditures		(2,474,000)	5,772,000	3,646,000
Banking [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		(1,732,000)	(1,292,000)	(1,103,000)
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	[1]	(1,191,000)	(109,000)	(387,000)
Noninterest income		27,698,000	27,506,000	23,814,000
Wealth Management [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		27,000	2,000	8,000
Interest expense		1,218,000	111,000	395,000
Net interest income (expense)		(1,191,000)	(109,000)	(387,000)
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		27,698,000	27,506,000	23,813,000
Noninterest expense		17,704,000	17,513,000	15,472,000
Income before income taxes		7,960,000	9,228,000	7,327,000
Income tax expense		1,641,000	1,916,000	1,494,000
Net income (loss)		6,319,000	7,312,000	5,833,000
Total assets		58,239,000	54,076,000	48,534,000
Net capital expenditures		534,000	17,000	24,000
Wealth Management [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		843,000	656,000	627,000
Insurance [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	[1]	0	0	0
Noninterest income		19,930,000	16,997,000	16,682,000
Insurance [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Interest income		0	0	0
Interest expense		0	0	0
Net interest income (expense)		0	0	0
Provision (reversal of provision) for credit losses		0	0	0
Noninterest income		19,930,000	16,997,000	16,682,000
Noninterest expense		15,747,000	12,971,000	12,142,000
Income before income taxes		3,294,000	3,390,000	4,064,000
Income tax expense		678,000	707,000	858,000
Net income (loss)		2,616,000	2,683,000	3,206,000
Total assets		44,728,000	40,649,000	35,906,000
Net capital expenditures		82,000	20,000	46,000
Insurance [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment (revenue) expense*		$ 889,000	$ 636,000	$ 476,000

[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.