Loans and Allowance for Credit Losses - Schedule of Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) loanReceivable	Dec. 31, 2020 USD ($) loanReceivable	Dec. 31, 2019 USD ($) loanReceivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 1,438	$ 19,964	$ 7,105
Number of Loans \| loanReceivable	3	29	14
Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 0	$ 8,208	$ 1,762
Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	697	11,756	153
Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	741	0	0
AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	4,597
Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	593
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 741	$ 727	$ 4,597
Number of Loans \| loanReceivable	1	3	1
Commercial real estate \| Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 0	$ 0	$ 0
Commercial real estate \| Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	727	0
Commercial real estate \| Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	741	0	0
Commercial real estate \| AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	4,597
Commercial real estate \| Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	0
Construction, land development, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 989
Number of Loans \| loanReceivable		2
Construction, land development, land \| Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 8
Construction, land development, land \| Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		981
Construction, land development, land \| Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Construction, land development, land \| AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Construction, land development, land \| Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
1-4 family residential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 171	$ 38
Number of Loans \| loanReceivable		1	2
1-4 family residential properties \| Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 0	$ 0
1-4 family residential properties \| Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		171	38
1-4 family residential properties \| Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0	0
1-4 family residential properties \| AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0	0
1-4 family residential properties \| Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0	0
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 3,486
Number of Loans \| loanReceivable		1
Farmland \| Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		$ 3,486
Farmland \| Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Farmland \| Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Farmland \| AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Farmland \| Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications		0
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 697	$ 14,591	$ 2,470
Number of Loans \| loanReceivable	2	22	11
Commercial \| Extended Amortization Period
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 0	$ 4,714	$ 1,762
Commercial \| Payment Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	697	9,877	115
Commercial \| Protective Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	0
Commercial \| AB Note Restructure
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	0	0	0
Commercial \| Extended Maturity and Reduced Interest Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Modifications	$ 0	$ 0	$ 593