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Loans and Allowance for Credit Losses on Loans - Schedule of Allocation of the Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	$ 30,675	$ 30,675	$ 25,172	$ 24,260	$ 23,832	$ 22,983
Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	12,051		11,467
Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	10,405		12,284
Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	8,219		1,421
Commercial loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,718	1,876	1,712	1,808	1,831	1,794
Commercial loans | Commercial and industrial | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	807		897
Commercial loans | Commercial and industrial | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	663		622
Commercial loans | Commercial and industrial | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	248		193
Commercial real estate loans | Commercial owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	2,345	2,408	2,476	2,530	2,589	2,487
Commercial real estate loans | Commercial owner-occupied | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,238		1,270
Commercial real estate loans | Commercial owner-occupied | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,107		1,205
Commercial real estate loans | Commercial owner-occupied | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		1
Commercial real estate loans | Commercial non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	22,100	22,165	14,933	13,624	13,201	12,676
Commercial real estate loans | Commercial non-owner occupied | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	7,580		7,380
Commercial real estate loans | Commercial non-owner occupied | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	6,549		6,327
Commercial real estate loans | Commercial non-owner occupied | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	7,971		1,226
Commercial real estate loans | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	660	874	1,832	2,018	1,942	1,937
Commercial real estate loans | Construction | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	49		185
Commercial real estate loans | Construction | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	611		1,647
Commercial real estate loans | Construction | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Residential loans | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	647	650	552	565	561	558
Residential loans | Home equity | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	583		482
Residential loans | Home equity | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	64		70
Residential loans | Home equity | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Residential loans | Other residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,145	769	653	605	599	595
Residential loans | Other residential | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,143		619
Residential loans | Other residential | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	2		33
Residential loans | Other residential | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		1
Consumer loans | Installment and other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	920	910	976	951	940	868
Consumer loans | Installment and other consumer loans | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	651		634
Consumer loans | Installment and other consumer loans | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	269		342
Consumer loans | Installment and other consumer loans | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Unallocated
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,140	$ 1,023	2,038	$ 2,159	$ 2,169	$ 2,068
Unallocated | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Unallocated | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,140		2,038
Unallocated | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	$ 0		$ 0

X

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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