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Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis (Details) $ in Thousands	Dec. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($) item
Fair Value
OREO	$ 2,736	$ 11,914
Impaired loans	75,418	95,188
Nonrecurring basis | OREO | Fair Value
Fair Value
OREO	2,736	11,914
Nonrecurring basis | Bank property held for sale | Fair Value
Fair Value
Bank property held for sale	9,578	36,006
Nonrecurring basis | Non-acquired impaired loans | Fair Value
Fair Value
Impaired loans	$ 20,802	$ 17,609
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) | item	0.09	0.05
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO
Fair Value
OREO	$ 2,736	$ 11,914
Quantitative Information about Level 3 Fair Value Measurements
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Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent) | item	0.24	0.14
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Bank property held for sale
Fair Value
Bank property held for sale	$ 9,578	$ 36,006
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Non-acquired impaired loans
Fair Value
Impaired loans	$ 20,802	$ 17,609

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Amount of financing receivable on nonaccrual status.

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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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