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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Provision for (release of) credit losses on loans and unfunded commitments |  | $ 300 |  | $ 300 | $ 1,115 |  | $ (1,000) |  |  |  |  |
Allowance for credit losses on loans |  | 22,462 | [1] | $ 15,505 | 22,462 | [1] | $ 15,505 | $ 22,236 | $ 15,588 | [1] | $ 15,353 | $ 16,903
Unfunded Loan Commitment |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses on loans |  | $ 900 |  |  | $ 900 |  |  |  |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Provision for (release of) credit losses on loans and unfunded commitments | $ 5,800 |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses on loans | 5,793 |  |  |  |  |  |  |  | $ 5,793 |  |  |
Cumulative Effect, Period of Adoption, Adjustment | Unfunded Loan Commitment |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses on loans | $ 1,300 |  |  |  |  |  |  |  |  |  |  |
[1] | amounts include the impacts of the January 1, 2023 adoption of ASU 2016-13. See Note 2 for details.See accompanying notes to the consolidated financial statements (unaudited)

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
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- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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