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Allowance for Credit Losses - Summary of Nonaccrual Loans Excluding Purchased Credit-Impaired (PCI) Loans (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | $ 16,849 | $ 1,198 |
Nonaccrual loans without a related ACL | 14,101 | 11,269 |
Total, Non-Accrual Status | 30,950 | 12,467 | $ 6,507
Interest Income Recognized | 256 | 46 | 451
Commercial and Agriculture [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 8,901 | 914 |
Nonaccrual loans without a related ACL | 3,370 | 4,891 |
Total, Non-Accrual Status | 12,271 | 5,805 | 774
Interest Income Recognized | 1 | 9 |
Commercial Real Estate Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 36 | 269 |
Nonaccrual loans without a related ACL | 0 | 3 |
Total, Non-Accrual Status | 36 | 272 | 386
Interest Income Recognized | 79 | 7 | 143
Commercial Real Estate Non Owner Occupied [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 2,514 |  |
Nonaccrual loans without a related ACL | 8,000 | 1,167 |
Total, Non-Accrual Status | 10,514 | 1,167 | 1,109
Residential Real Estate [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 4,745 |  |
Nonaccrual loans without a related ACL | 2,131 | 4,633 |
Total, Non-Accrual Status | 6,876 | 4,633 | 3,926
Interest Income Recognized | 172 | 26 | 73
Real Estate Construction [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans without a related ACL | 0 | 41 |
Total, Non-Accrual Status | 0 | 41 | 221
Lease Financing Receivable [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 638 | 15 |
Nonaccrual loans without a related ACL | 600 | 492 |
Total, Non-Accrual Status | 1,238 | 507 |
Consumer and Other [Member] |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Nonaccrual loans with a related ACL | 15 |  |
Nonaccrual loans without a related ACL | 0 | 42 |
Total, Non-Accrual Status | 15 | 42 | 91
Interest Income Recognized | $ 4 | $ 4 | $ 235

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