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FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Overnight borrowings with FHLB	$ 74,854,000	$ 73,267,000
FHLB interest rate	3.94%	3.96%
Unused short-term overnight borrowing capacity from FHLB	$ 1,690,000,000
Unused short-term or overnight borrowings from correspondent banks	15,000,000
Unused short-term or overnight borrowings from FRB	2,670,000,000
Federal Reserve Bank of New York [Member]
Debt Instrument [Line Items]
Overnight borrowings with FHLB	$ 74,900,000	$ 73,300,000

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