Fair Value of Assets and Liabilities - Significant Unobservable Inputs Used in Valuation of Level 3 Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Mortgage Servicing Rights \| Minimum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights	126.00%	205.00%
Mortgage Servicing Rights \| Maximum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights	437.00%	513.00%
Mortgage Servicing Rights \| Weighted Average \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights	135.00%	273.00%
Collateral Dependent Loans \| Minimum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	0.00%	0.00%
Collateral Dependent Loans \| Maximum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	40.00%	40.00%
Collateral Dependent Loans \| Weighted Average \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	20.00%	20.00%
Foreclosed Assets Held-for-sale \| Minimum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	0.00%	0.00%
Foreclosed Assets Held-for-sale \| Maximum \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	40.00%	40.00%
Foreclosed Assets Held-for-sale \| Weighted Average \| Level 3 \| Third Party Valuations
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	35.00%	35.00%
Fair Value, Nonrecurring \| Mortgage Servicing Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value	$ 389	$ 420
Fair Value, Nonrecurring \| Collateral Dependent Loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value	3,406	6,750
Fair Value, Nonrecurring \| Collateral Dependent Loans \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value	3,406	6,750
Fair Value, Nonrecurring \| Foreclosed Assets Held-for-sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets, Fair Value	$ 1,680	$ 2,068

Discount to reflect realizable value used when pricing the investments.

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- Definition

Public securities association standard prepayment model rate.

+ References

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

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