DEPOSITS - Narrative (Detail) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Deposit Liability [Line Items]
Time deposits greater than $250,000	$ 916.7	$ 803.1
Demand deposit overdrafts reclassified as loans	0.9	1.2
State and municipal deposits	1,600.0	1,500.0
Asset Pledged as Collateral
Deposit Liability [Line Items]
Available borrowing capacity through FHLB	$ 1,700.0	$ 1,500.0

Deposits, State And Municipal, Secured By Collateral

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- Definition

Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

+ References

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-Topic 942
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-URI https://asc.fasb.org/1943274/2147478353/942-405-50-1

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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.

+ References

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

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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- Definition

Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.

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