CREDIT QUALITY ASSESSMENT - Narrative (Detail)	12 Months Ended
Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Interest income recognized on non-accrual	$ 0
Loans placed on non-accrual	81,900,000
Reversal of uncollected accrued interest	1,100,000
Unfunded loan commitments for borrowers experiencing financial difficulty	2,800,000
TDR allowance		$ 1,233,000
Other real estate owned	$ 0	645,000
Number of mortgages in formal foreclosure proceedings \| loan	1
Mortgages in formal foreclosure proceedings	$ 600,000
Restructured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans restructured during the period		1,700,000
TDR allowance		1,200,000
Nonaccrual Collateral Dependent Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Subsequent default, number of contracts \| loan	3
Financing receivable, modified, subsequent default	$ 1,700,000
Allowance for credit loss	200,000
Restructured Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Other real estate owned	$ 0	$ 600,000
Interest rate reduction \| Nonaccrual Collateral Dependent Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Subsequent default, number of contracts \| loan	2
Term extension \| Nonaccrual Collateral Dependent Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Subsequent default, number of contracts \| loan	1

Additional financing receivable troubled debt restructurings restructured.

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Financing Receivable, Nonaccrual, Interest Income Recognized

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Amount of investment related to financing receivables modified by troubled debt restructurings previous 12 months, for specific allowance.

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Amount of increase from transfer of financing receivable to nonaccrual status.

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Number of Mortgage Loans in Process of Foreclosure

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The amount of accrued interest reversed during the period.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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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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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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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.

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Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

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Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable.

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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.

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