Loans and Allowance for Credit Losses - Loans - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Net deferred loan fees	$ 3,900		$ 3,900		$ 3,900
Accrued interest	20,400		20,400
Interest income on nonaccrual loans	$ 551	$ 221	$ 1,000	$ 605
Weighted average term increase from modification			2 years

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- Definition

Amount, after allowance for credit loss, of accrued interest on financing receivable.

+ References

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-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Topic 310
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- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

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-Topic 326
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- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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