Loans - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net unearned discounts and deferred loan costs	$ 13,500,000		$ 14,900,000
Nonaccrual interest income	0	$ 0
Repossessed assets	1,000,000.0
Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans with an aggregate credit exposure	$ 3,000,000
Loans classified as TDR after a period (in days)	90 days
Minimum | Good Pass
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of consecutive years of profit for good pass rating (in years)	3 years
Number of consecutive years of profit unaudited financial information for good pass rating (in years)	5 years
Number of years of satisfactory relationship with bank for good pass rating (in years)	5 years
Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans with an aggregate credit exposure	$ 6,000,000
Loans classified as TDR after a period (in days)	120 days
Maximum | Satisfactory Pass
Financing Receivable, Troubled Debt Restructuring [Line Items]
Minimum number of years of satisfactory repayment required for satisfactory pass rating (in years)	2 years
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net investment in which foreclosure proceedings have commenced	$ 900,000
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default	2,825,000	1,253,000
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default	$ 136,000	$ 287,000