Loans - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Deferred fees, costs, premiums and discounts on loan portfolio	$ 12,859,000	$ 17,101,000
Accrued interest receivable on loans	$ 34,879,000	$ 26,494,000
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable	Accrued interest receivable
Loans, allowance for credit losses	$ 80,398,000	$ 65,917,000	$ 47,547,000	$ 47,766,000
Provision for credit losses	18,247,000	18,050,000	3,000,000
Accounts receivable, allowance for credit loss		45,000
Commitment to lend additional funds	0
Financial Asset, Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans modified in the last 12 months	0
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, allowance for credit losses	29,523,000	40,785,000	31,622,000	$ 29,235,000
Commercial and industrial | Financial Asset, Nonaccrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans modified in the last 12 months	$ 292,000
Number of loans modified in the last 12 months | loan	1
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, allowance for credit losses	$ 2,309,000	1,313,000
Provision for credit losses	$ 1,212,000	$ 525,000	$ 300,000