Segment Information - Segment Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net Interest Income	$ 47,559			$ 51,698			$ 144,826	$ 148,203
Net Gains on Sales of Loans	614			854			1,831	3,324
Net Gains on Securities	0			23			40	473
Wealth Management Fees	2,957			2,376			8,513	7,656
Insurance Revenues	2,065			1,995			7,330	7,970
Noncash Items:
Provision (Benefit) for Credit Losses	900			350			2,550	5,850
Depreciation and Amortization	2,369			2,493			7,208	7,743
Income Tax Expense (Benefit)	4,591			6,133			13,799	11,831
Segment Profit (Loss)	21,451	$ 22,123	$ 20,807	24,596	$ 23,747	$ 9,067	64,381	57,410
Segment Assets	6,005,666						6,005,666		$ 6,155,991
Operating Segments | Core Banking
Segment Reporting Information [Line Items]
Net Interest Income	48,794			52,659			148,363	150,798
Net Gains on Sales of Loans	614			854			1,831	3,324
Net Gains on Securities	0			23			40	473
Wealth Management Fees	1			1			4	3
Insurance Revenues	0			1			1	30
Noncash Items:
Provision (Benefit) for Credit Losses	900			350			2,550	5,850
Depreciation and Amortization	2,236			2,357			6,803	7,334
Income Tax Expense (Benefit)	4,709			6,443			14,099	12,189
Segment Profit (Loss)	21,472			26,213			63,987	58,162
Segment Assets	5,998,860						5,998,860		6,152,346
Operating Segments | Wealth Management Services
Segment Reporting Information [Line Items]
Net Interest Income	32			14			86	27
Net Gains on Sales of Loans	0			0			0	0
Net Gains on Securities	0			0			0	0
Wealth Management Fees	2,956			2,375			8,509	7,653
Insurance Revenues	1			9			22	11
Noncash Items:
Provision (Benefit) for Credit Losses	0			0			0	0
Depreciation and Amortization	7			10			26	31
Income Tax Expense (Benefit)	184			149			474	551
Segment Profit (Loss)	761			461			2,083	1,717
Segment Assets	8,374						8,374		8,846
Operating Segments | Insurance
Segment Reporting Information [Line Items]
Net Interest Income	15			8			45	14
Net Gains on Sales of Loans	0			0			0	0
Net Gains on Securities	0			0			0	0
Wealth Management Fees	0			0			0	0
Insurance Revenues	2,064			1,985			7,307	7,929
Noncash Items:
Provision (Benefit) for Credit Losses	0			0			0	0
Depreciation and Amortization	12			12			37	36
Income Tax Expense (Benefit)	107			61			427	643
Segment Profit (Loss)	161			189			1,470	2,038
Segment Assets	15,631						15,631		14,706
Other
Segment Reporting Information [Line Items]
Net Interest Income	(1,282)			(983)			(3,668)	(2,636)
Net Gains on Sales of Loans	0			0			0	0
Net Gains on Securities	0			0			0	0
Wealth Management Fees	0			0			0	0
Insurance Revenues	0			0			0	0
Noncash Items:
Provision (Benefit) for Credit Losses	0			0			0	0
Depreciation and Amortization	114			114			342	342
Income Tax Expense (Benefit)	(409)			(520)			(1,201)	(1,552)
Segment Profit (Loss)	(943)			$ (2,267)			(3,159)	$ (4,507)
Segment Assets	$ (17,199)						$ (17,199)		$ (19,907)