Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis (Details) $ in Thousands	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value
OREO	$ 11,471	$ 11,914
Impaired loans	100,100	95,188
Nonrecurring basis \| Fair Value
Fair Value
OREO	11,471	11,914
Bank property held for sale	31,193	36,006
Impaired loans	8,764	17,609
Nonrecurring basis \| Significant Unobservable Inputs (Level 3)
Fair Value
OREO	11,471	11,914
Bank property held for sale	31,193	36,006
Impaired loans	$ 8,764	$ 17,609
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| OREO
Quantitative Information about Level 3 Fair Value Measurements
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Long-term Debt, Measurement Input [Extensible List]	us-gaap:MeasurementInputCostToSellMember	us-gaap:MeasurementInputCostToSellMember
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| OREO \| Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent)	13	14
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
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Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Impaired loans \| Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent)	13	5

Amount of bank property held for sale.

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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.

+ References

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- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
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- Definition

Value of input used to measure long-term debt.

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Indicates measurement input for long-term debt.

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Indicates valuation technique for measuring long-term debt.

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- Definition

Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include 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. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

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