FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Borrowings With The FHLB	$ 378,800,000
Overnight borrowings with FHLB	$ 378,800,000	$ 379,530,000
FHLB interest rate	4.99%	4.61%
One-month advance from Federal Home Loan Bank	$ 250,000,000.0
One-month advance rate	5.20%
Maturity of FHLB advance	Apr. 13, 2023
Unused commitments from FHLB	$ 1,500,000,000
Unused short-term or overnight borrowings from correspondent banks	22,000,000.0
Unused short-term or overnight borrowings from FRB	1,800,000,000
Federal Reserve Bank of New York [Member]
Debt Instrument [Line Items]
Overnight borrowings with FHLB	$ 128,800,000	$ 379,500

FHLB advance maturity date.

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Amount of unused borrowing capacity under the short-term or overnight borrowings financing arrangement with correspondent banks.

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Amount of unused borrowing capacity under the short-term or overnight borrowings financing arrangement with Federal Reserve Bank.

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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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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The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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

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Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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