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v3.22.2.2

Loans and Allowance for Credit Losses - Troubled Debt Restructurings Identified During Period (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) Contract | Sep. 30, 2022 USD ($) Contract | Sep. 30, 2021 USD ($) Contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 15 | 2 | 28
Total Pre-Modification Outstanding Recorded Investment | $ 0 | $ 1,160 | $ 69 | $ 8,140
Post- Modification Outstanding Recorded Investment |  | 1,144 | 68 | 4,191
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 | $ 0 | $ 0
Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 5 |  | 6
Total Pre-Modification Outstanding Recorded Investment |  | $ 206 |  | $ 6,803
Post- Modification Outstanding Recorded Investment |  | 202 |  | 2,895
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 5 | 2 | 13
Total Pre-Modification Outstanding Recorded Investment |  | $ 230 | $ 69 | $ 520
Post- Modification Outstanding Recorded Investment |  | 221 | 68 | 500
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 | $ 0 | $ 0
Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 3 |  | 7
Total Pre-Modification Outstanding Recorded Investment |  | $ 80 |  | $ 173
Post- Modification Outstanding Recorded Investment |  | 76 |  | 151
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 2 |  | 2
Total Pre-Modification Outstanding Recorded Investment |  | $ 644 |  | $ 644
Post- Modification Outstanding Recorded Investment |  | 645 |  | 645
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Time and Demand Loans | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 5 |  | 6
Total Pre-Modification Outstanding Recorded Investment |  | $ 206 |  | $ 6,803
Post- Modification Outstanding Recorded Investment |  | 202 |  | 2,895
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Senior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 3 | 2 | 10
Total Pre-Modification Outstanding Recorded Investment |  | $ 113 | $ 69 | $ 390
Post- Modification Outstanding Recorded Investment |  | 109 | 68 | 375
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 | 0 | $ 0
Junior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 2 |  | 3
Total Pre-Modification Outstanding Recorded Investment |  | $ 117 |  | $ 130
Post- Modification Outstanding Recorded Investment |  | 112 |  | 125
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Automobiles | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 3 |  | 7
Total Pre-Modification Outstanding Recorded Investment |  | $ 80 |  | $ 173
Post- Modification Outstanding Recorded Investment |  | 76 |  | 151
Troubled Debt Restructuring [Policy Text Block] |  | $ 0 |  | $ 0
Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Contracts | Contract |  | 2 |  | 2
Total Pre-Modification Outstanding Recorded Investment |  | $ 644 |  | $ 644
Post- Modification Outstanding Recorded Investment |  | 645 |  | 645
Troubled Debt Restructuring [Policy Text Block] |  | 0 |  | 0
Extended Maturity [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 | 0 | 0
Extended Maturity [Member] | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 | 0 | 0
Extended Maturity [Member] | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Time and Demand Loans | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Senior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 | 0 | 0
Extended Maturity [Member] | Junior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Automobiles | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Extended Maturity [Member] | Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 130 | 10 | 329
Contractual Interest Rate Reduction [Member] | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 113 | 10 | 219
Contractual Interest Rate Reduction [Member] | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 17 |  | 110
Contractual Interest Rate Reduction [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] | Time and Demand Loans | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] | Senior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 113 | 10 | 219
Contractual Interest Rate Reduction [Member] | Junior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Interest Rate Reduction [Member] | Automobiles | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 17 |  | 110
Contractual Interest Rate Reduction [Member] | Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0
Contractual Payment Modification [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 1,030 | 59 | 7,811
Contractual Payment Modification [Member] | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 206 |  | 6,803
Contractual Payment Modification [Member] | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 117 | 59 | 301
Contractual Payment Modification [Member] | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 63 |  | 63
Contractual Payment Modification [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 644 |  | 644
Contractual Payment Modification [Member] | Time and Demand Loans | Commercial, financial, agricultural and other [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 206 |  | 6,803
Contractual Payment Modification [Member] | Senior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 0 | $ 59 | 171
Contractual Payment Modification [Member] | Junior Lien | Residential real estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 117 |  | 130
Contractual Payment Modification [Member] | Automobiles | Loans to individuals [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | 63 |  | 63
Contractual Payment Modification [Member] | Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Total Pre-Modification Outstanding Recorded Investment |  | $ 644 |  | $ 644

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