Fair Value of Financial Instruments - Level 3 Assets and Liabilities Measured at Fair Value (Details) $ in Thousands	Dec. 31, 2021 USD ($) a	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans		$ 36,281	$ 25,202
Foreclosed properties	$ 3,071	2,424
Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed properties	364	1,484
Significant Unobservable Inputs (Level 3) | Financing Receivable, Collateral Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans	7,326
Impaired loans		16,000
Significant Unobservable Inputs (Level 3) | Financing Receivable, Cash Flow Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans	$ 4,257
Impaired loans		$ 6,142
Significant Unobservable Inputs (Level 3) | Appraised value | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed real estate, measurement input (as a percent)	10	10
Significant Unobservable Inputs (Level 3) | Appraised value | Discount rate | Financing Receivable, Collateral Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans, measurement input (as a percent)	0.10	0.10
Significant Unobservable Inputs (Level 3) | PV of expected cash flows | Discount rate | Minimum | Financing Receivable, Cash Flow Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans, measurement input (as a percent) | a	0.04
Impaired loans, measurement input (as a percent)		0.04
Significant Unobservable Inputs (Level 3) | PV of expected cash flows | Discount rate | Maximum | Financing Receivable, Cash Flow Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans, measurement input (as a percent) | a	0.11
Impaired loans, measurement input (as a percent)		0.11
Significant Unobservable Inputs (Level 3) | PV of expected cash flows | Discount rate | Weighted Average | Financing Receivable, Cash Flow Dependent
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans, measurement input (as a percent) | a	0.0622
Impaired loans, measurement input (as a percent)		0.0621