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

Financing receivable nonaccrual with allowance.

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Amount of interest income on financing receivable on nonaccrual status.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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