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Credit Quality - Schedule of Amortized Cost Basis of Loan Modifications Made to Borrowers (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | $ 1,000 | $ 2,400
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 3,466 | $ 168
% of Total Class of Financing Receivable | 0.13% | 0.04%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 674
% of Total Class of Financing Receivable |  | 0.00%
Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 15,475 | $ 6,447
Financing Receivable, Modified, Subsequent Default |  | 0
Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 7,160 | 0
Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 4,616 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Commercial Real Estate [Member] | Owner-Occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 3,466 | $ 0
% of Total Class of Financing Receivable | 0.54% | 0.03%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Commercial Real Estate [Member] | Owner-Occupied [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 8,015 | $ 445
Financing Receivable, Modified, Subsequent Default |  | 0
Commercial Real Estate [Member] | Owner-Occupied [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Commercial Real Estate [Member] | Owner-Occupied [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Commercial Real Estate [Member] | Nonowner-Occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 0
% of Total Class of Financing Receivable | 0.23% | 0.08%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Commercial Real Estate [Member] | Nonowner-Occupied [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 7,460 | $ 5,765
Financing Receivable, Modified, Subsequent Default |  | 0
Commercial Real Estate [Member] | Nonowner-Occupied [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 7,160 | 0
Commercial Real Estate [Member] | Nonowner-Occupied [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 4,616 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Other Commercial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 1,000 | 2,400
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 0
% of Total Class of Financing Receivable | 0.03% | 0.00%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Other Commercial [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | $ 0
Financing Receivable, Modified, Subsequent Default |  | 0
Other Commercial [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Other Commercial [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Residential Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 168
% of Total Class of Financing Receivable | 0.00% | 0.06%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Residential Real Estate [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | $ 185
Financing Receivable, Modified, Subsequent Default |  | 0
Residential Real Estate [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Residential Real Estate [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Construction & Land Development [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 0
% of Total Class of Financing Receivable | 0.00% | 0.00%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 674
% of Total Class of Financing Receivable |  | 0.02%
Construction & Land Development [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | $ 52
Financing Receivable, Modified, Subsequent Default |  | 0
Construction & Land Development [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Construction & Land Development [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Consumer [Member] | Bankcard [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 0
% of Total Class of Financing Receivable | 0.00% | 0.00%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Consumer [Member] | Bankcard [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | $ 0
Financing Receivable, Modified, Subsequent Default |  | 0
Consumer [Member] | Bankcard [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Consumer [Member] | Bankcard [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Financing Receivable, Modified, Subsequent Default |  | 0
Consumer [Member] | Other Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Amortized Cost Basis Loan Modification Term Extension And Interest Rate Reduction | 0 | 0
Amortized Cost Basis Loan Modification Term Extension And Permanent Delay | $ 0 | $ 0
% of Total Class of Financing Receivable | 0.00% | 0.00%
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Interest Rate Reduction |  | $ 0
Amortized Cost Basis of Modified Loans that Subsequently Defaulted in Term Extension Payment Delay |  | $ 0
% of Total Class of Financing Receivable |  | 0.00%
Consumer [Member] | Other Consumer [Member] | Term Extension [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | $ 0
Financing Receivable, Modified, Subsequent Default |  | 0
Consumer [Member] | Other Consumer [Member] | Other than insignificant payment delay [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | 0 | 0
Consumer [Member] | Other Consumer [Member] | Interest Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modified | $ 0 | 0
Financing Receivable, Modified, Subsequent Default |  | $ 0

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