Financing receivables modifications number of contracts.

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- Definition

Gain on sale of residential mortgage loans.

+ References

No definition available.

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Loans pledged.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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- Definition

Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

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- Definition

Amount of interest income on financing receivable on nonaccrual status.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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- Definition

The number of real estate properties owned as of the balance sheet date.

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No definition available.

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Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

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- Definition

The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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Loans - Additional Information (Detail)	3 Months Ended		6 Months Ended
Loans - Additional Information (Detail)	Jun. 30, 2026 USD ($) Loan	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($) Loan	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($) Property	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable on loans	$ 24,613,000		$ 24,613,000			$ 24,466,000
Pledged loans, carrying value	2,200,000,000		2,200,000,000			2,400,000,000
Sale of residential mortgage loans from the held for investment portfolio		$ 0		$ 10,000,000
Total loans	6,535,312,000		6,535,312,000			6,563,368,000
Loans held for sale, at the lower of cost or fair value	16,969,000	49,611,000	16,969,000	49,611,000	$ 4,932,000	7,403,000	$ 11,831,000	$ 8,579,000
Gains on sale of second draw PPP loans			3,421,000	4,161,000
Proceeds from sale of second draw PPP loans	54,757,000	35,388,000	119,000,000	67,553,000
Interest income on nonaccrual loans	4,000	15,000	5,000	361,000
Credit loss expense	1,186,000	7,631,000	4,078,000	$ 10,352,000
Other real estate owned ("OREO")	$ 0		0			$ 1,980,000
Number of real estate properties \| Property						2
Number of loan modified \| Loan	0			0
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,171,272,000		1,171,272,000			$ 1,074,908,000
Loans held for sale, at the lower of cost or fair value	3,679,000	4,199,000	3,679,000	$ 4,199,000	$ 2,218,000	2,418,000	$ 6,816,000	$ 4,585,000
Proceeds from sale of second draw PPP loans	12,216,000	$ 19,787,000	23,332,000	34,358,000
Payment defaults on loans modified within the preceding 12 months			0	$ 0
Loans Pledged to Secure Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans, carrying value	2,200,000,000		2,200,000,000			2,400,000,000
Loans pledged	1,220,000,000		1,220,000,000			528,100,000
Loans \| Accrued Interest
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable on loans	$ 20,200,000		$ 20,200,000			$ 20,700,000