Loans - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Deferred loan costs	$ 23,200,000		$ 22,700,000
Period of loan sold by mortgage company	30 days
Minimum period seldom held	90 days
Mortgage warehousing maximum pay off period	30 days
Nonaccrual interest income	$ 0	$ 0
Non–accrual	20,796,000		17,630,000
Non-performing TDRs			$ 1,500,000
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