LOANS AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) $ in Thousands	3 Months Ended
Mar. 31, 2026 USD ($) loan	Dec. 31, 2025 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest	$ 9,000	$ 8,900
Deferred loan costs, net	3,800	4,100
Individually analyzed	$ 3,828	4,187
Number of days past due after which a retail loan is rated	90 days
Collateral Pledged
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually analyzed	$ 1,044	2,173
Commercial Credit Card
Financing Receivable, Allowance for Credit Loss [Line Items]
Transfer of portfolio loans to loans held for sale	2,300
Residential Mortgages
Financing Receivable, Allowance for Credit Loss [Line Items]
Transfer of portfolio loans to loans held for sale	400
Individually analyzed	$ 0	$ 0
Defaulted Loan \| Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Modified contracts \| loan	0

Financing Receivable, Modified Contracts

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Number Of Days Past Due After Which A Loan Will Be Rated

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, before allowance for credit loss, of accrued interest on financing receivable.

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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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Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

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Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.

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