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Allowance for Credit Losses - Summary of Nonaccrual Loans Excluding Purchased Credit-Impaired (PCI) Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans with a related ACL | $ 5,511 | $ 1,198
Nonaccrual loans without a related ACL | 9,698 | 11,269
Total Nonaccrual loans | 15,209 | 12,467
Commercial and Agriculture [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans with a related ACL | 1,485 | 914
Nonaccrual loans without a related ACL | 2,641 | 4,891
Total Nonaccrual loans | 4,126 | 5,805
Commercial Real Estate Owner Occupied [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans with a related ACL | 219 | 269
Nonaccrual loans without a related ACL | 138 | 3
Total Nonaccrual loans | 357 | 272
Commercial Real Estate Non Owner Occupied [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans with a related ACL | 3,006 |
Nonaccrual loans without a related ACL |  | 1,167
Total Nonaccrual loans | 3,006 | 1,167
Residential Real Estate [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans without a related ACL | 6,075 | 4,633
Total Nonaccrual loans | 6,075 | 4,633
Real Estate Construction [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans without a related ACL |  | 41
Total Nonaccrual loans |  | 41
Lease Financing Receivables [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans with a related ACL | 801 | 15
Nonaccrual loans without a related ACL | 823 | 492
Total Nonaccrual loans | 1,624 | 507
Consumer and Other [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Nonaccrual loans without a related ACL | 21 | 42
Total Nonaccrual loans | $ 21 | $ 42

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