Fair Value Accounting - Assets And Liabilities Measured At Fair Value On A Non-Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	$ 11,818	$ 1,819
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,482	44,802
Other real estate	270	860
MPS receivable	0	15,575
Other assets held for sale	$ 1,256	2,354
Fair Value, Measurements, Nonrecurring \| Maximum \| Other assets held for sale \| Third-party appraised value less estimated selling costs or BOV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	51.00%
Fair Value, Measurements, Nonrecurring \| Weighted Average \| Other assets held for sale \| Third-party appraised value less estimated selling costs or BOV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	20.00%
Fair Value, Measurements, Nonrecurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 0	0
Other real estate	0	0
MPS receivable	0	0
Other assets held for sale	0	0
Fair Value, Measurements, Nonrecurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other real estate	0	0
MPS receivable	0	0
Other assets held for sale	0	0
Fair Value, Measurements, Nonrecurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,482	44,802
Other real estate	270	860
MPS receivable	0	15,575
Other assets held for sale	$ 1,256	$ 2,354
Fair Value, Measurements, Nonrecurring \| Level 3 \| Minimum \| Collateral Dependent Impaired Loans \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	0.00%	0.00%
Fair value inputs, estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Minimum \| Other real estate \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	0.00%	0.00%
Fair value inputs, estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Minimum \| Other assets held for sale \| Third-party appraised value less estimated selling costs or BOV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	0.00%	0.00%
Fair value inputs, estimated selling costs	0.00%	0.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Maximum \| Collateral Dependent Impaired Loans \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	71.00%	39.00%
Fair value inputs, estimated selling costs	10.00%	7.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Maximum \| Other real estate \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	48.00%	23.00%
Fair value inputs, estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Maximum \| Other assets held for sale \| Third-party appraised value less estimated selling costs or BOV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate		66.00%
Fair value inputs, estimated selling costs	10.00%	10.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Weighted Average \| Collateral Dependent Impaired Loans \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	48.00%	25.00%
Fair value inputs, estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Weighted Average \| Other real estate \| Third Party Appraised value of Real Estate Less Estimated Selling Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate	24.00%	12.00%
Fair value inputs, estimated selling costs	7.00%	7.00%
Fair Value, Measurements, Nonrecurring \| Level 3 \| Weighted Average \| Other assets held for sale \| Third-party appraised value less estimated selling costs or BOV
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and servicing liabilities at fair value, assumptions used to estimate fair value, discount rate		45.00%
Fair value inputs, estimated selling costs	7.00%	7.00%

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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.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Fair value portion of other assets.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

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Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

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