Allowance for credit losses on loans and unfunded commitments.

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- Definition

Allowance for credit losses on loans and unfunded commitments net of tax.

+ References

No definition available.

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- Definition

Delinquent period for charging down consumer loans

+ References

No definition available.

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- Definition

Delinquent period for charging down or allocated commercial and agricultural credits.

+ References

No definition available.

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- Definition

Financing receivable modifications number of contracts.

+ References

No definition available.

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- Definition

Litigation and any deficiency charged off period.

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No definition available.

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- Definition

Maximum time for reevaluation.

+ References

No definition available.

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- Definition

Re evaluation period for real estate.

+ References

No definition available.

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- Definition

Unsecured consumer loans credit card credits and overdraft.

+ References

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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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Loans (Impaired Loans) - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) Loan	Jun. 30, 2024 USD ($) Loan	Jun. 30, 2025 USD ($) Contract Loan	Jun. 30, 2024 USD ($) Loan	Dec. 31, 2024 USD ($)	Jan. 01, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modifications to borrower experiencing financial difficulty	$ 0	$ 0	$ 0	$ 0
Maximum time for re-evaluation (in months)			12 months
Re-evaluation period for real estate			2 years
Unsecured consumer loans, credit card credits and overdraft lines of credit reach			90 days
Delinquent period for charging down consumer loans			90 days
Litigation and any deficiency charged off period			150 days
Delinquent period for charging down/allocated commercial and agricultural credits			120 days
Number of contracts modified \| Loan	0	0	0	0
Principal Forgiveness [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts modified \| Contract			0
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed residential real estate property	$ 0	$ 0	$ 0	$ 0	$ 0
Residential real estate properties foreclosure proceedings	$ 925,000	$ 795,000	$ 925,000	$ 795,000	$ 1,300,000
ASU 2016-13 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans and unfunded commitments						$ 4,500,000
Allowance for credit losses on loans and unfunded commitments net of tax						$ 3,400,000