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Fair Value Measurements - Mortgage Servicing Rights - Other (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Fair Value Measurements |  |  |  |  |
Impaired loans with a specific allowance | $ 3,038 |  | $ 3,038 |  | $ 10,627
Impaired financing receivable, charge-offs | 61 | $ 33 | 86 | $ 69 |
Specific allowance related to impaired loans | 302 |  | 302 |  | $ 3,044
Collateral dependent impaired loans |  |  |  |  |
Fair Value Measurements |  |  |  |  |
Specific allowance related to impaired loans |  | 4,700 |  | 4,700 |
Collateral dependent impaired loans |  |  |  |  |
Fair Value Measurements |  |  |  |  |
Impaired loans with a specific allowance | $ 15,900 | $ 31,200 | $ 15,900 | $ 31,200 |

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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
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- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
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