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- Definition

Debt Instrument, Remaining Borrowing Capacity

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- Definition

Number of unconsolidated subsidiary trusts owned by the company.

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- Definition

Short-term Advances

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- Definition

Short-term Advances, Percentage Bearing Fixed Interest Rate

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The average effective interest rate during the reporting period.

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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

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Indicates type of variable interest rate on debt instrument.

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- Definition

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

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

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

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BORROWINGS - Additional Information (Details) $ in Millions	3 Months Ended
BORROWINGS - Additional Information (Details) $ in Millions	Mar. 31, 2026 USD ($) trust	Mar. 31, 2025	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Short-term advances	$ 0.0		$ 0.0
Number of unconsolidated subsidiary trusts \| trust	4
Trust Preferred Securities
Debt Instrument [Line Items]
Basis points, interest rate, type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Tenor spread adjustment	0.0026
FHLB
Debt Instrument [Line Items]
Credit available with FHLB	$ 12,000.0
FHLB amount available for borrowing	9,400.0
Collateral pledged	$ 16,600.0
Weighted average interest rate	3.95%	4.46%
Other Wholesale Credit
Debt Instrument [Line Items]
Remaining borrowing capacity	$ 9,500.0
FHLB
Debt Instrument [Line Items]
Short-term advances	$ 350.0		$ 530.0
Short-term advances, overnight maturities, percentage	35.00%		50.20%
Other Subordinated Debt \| Maximum
Debt Instrument [Line Items]
Debt term	1 year