Fair Value Measurements - Mortgage Servicing Rights - Other (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Fair Value Measurements
Impaired loans with a specific allowance	$ 10,627	$ 25,389
Specific allowance related to impaired loans	3,044	5,113
Collateral dependent impaired loans
Fair Value Measurements
Specific allowance related to impaired loans	2,800	4,700
Collateral dependent impaired loans
Fair Value Measurements
Impaired loans with a specific allowance	24,200	32,200
Impaired financing receivable charge offs	$ 100	$ 200

Represents the amount related to charge off of impaired financing receivable during the period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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 http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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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 http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524

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