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Fair Value Measurements - Quantitative Information About Level III Significant Unobservable Inputs (Details) $ in Thousands	Sep. 30, 2023 USD ($) yr	Dec. 31, 2022 USD ($) yr
Non-recurring | Other debt securities | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	$ 7,500	$ 7,500
Non-recurring | Equity securities | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	36,188	33,362
Non-recurring | Collateral-dependent loans
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	3,113
Non-recurring | Collateral-dependent loans | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	3,113
Non-recurring | Impaired loans
Quantitative Information about Level III Fair Value Measurements
Assets, fair value		14,117
Non-recurring | Impaired loans | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value		14,117
Non-recurring | Other real estate owned
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	906	1,194
Non-recurring | Other real estate owned | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	906	1,194
Recurring | Municipal Securities | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	17,140	35,343
Recurring | Embedded derivative | Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	$ 648	$ 787
Appraisal adjustments | Non-recurring | Collateral-dependent loans | Appraisal of collateral | Level III | Minimum
Quantitative Information about Level III Fair Value Measurements
Collateral-dependent loans	0
Appraisal adjustments | Non-recurring | Collateral-dependent loans | Appraisal of collateral | Level III | Maximum
Quantitative Information about Level III Fair Value Measurements
Collateral-dependent loans	0.20
Appraisal adjustments | Non-recurring | Impaired loans | Appraisal of collateral | Level III | Minimum
Quantitative Information about Level III Fair Value Measurements
Impaired loans		0
Appraisal adjustments | Non-recurring | Impaired loans | Appraisal of collateral | Level III | Maximum
Quantitative Information about Level III Fair Value Measurements
Impaired loans		0.20
Appraisal adjustments | Non-recurring | Other real estate owned | Appraisal of collateral | Level III | Minimum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0	0
Appraisal adjustments | Non-recurring | Other real estate owned | Appraisal of collateral | Level III | Maximum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.20	0.20
Appraisal adjustments | Recurring | Municipal Securities | Appraisal of bond | Level III | Minimum
Quantitative Information about Level III Fair Value Measurements
Municipal securities	0.05	0.05
Appraisal adjustments | Recurring | Municipal Securities | Appraisal of bond | Level III | Maximum
Quantitative Information about Level III Fair Value Measurements
Municipal securities	0.15	0.15
Liquidation expense | Non-recurring | Collateral-dependent loans | Appraisal of collateral | Level III
Quantitative Information about Level III Fair Value Measurements
Collateral-dependent loans	0.06
Liquidation expense | Non-recurring | Impaired loans | Appraisal of collateral | Level III
Quantitative Information about Level III Fair Value Measurements
Impaired loans		0.06
Liquidation expense | Non-recurring | Other real estate owned | Appraisal of collateral | Level III
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.06	0.06
Cost, less impairment | Non-recurring | Other debt securities | Net asset value | Level III
Quantitative Information about Level III Fair Value Measurements
Securities	0	0
Cost, less impairment | Non-recurring | Equity securities | Net asset value | Level III
Quantitative Information about Level III Fair Value Measurements
Securities	0	0
Deferred payment | Recurring | Embedded derivative | Level III | Minimum
Quantitative Information about Level III Fair Value Measurements
Derivative asset measurement input	0	0
Deferred payment | Recurring | Embedded derivative | Level III | Maximum
Quantitative Information about Level III Fair Value Measurements
Derivative asset measurement input	49,100	51,900
Volatility | Recurring | Embedded derivative | Level III
Quantitative Information about Level III Fair Value Measurements
Derivative asset measurement input	0.59	58
Term | Recurring | Embedded derivative | Level III
Quantitative Information about Level III Fair Value Measurements
Derivative asset measurement input | yr	4.75	5
Risk free rate | Recurring | Embedded derivative | Level III
Quantitative Information about Level III Fair Value Measurements
Derivative asset measurement input	3.59	3.95

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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