FHLBNY ADVANCES - Narrative (Details) - Federal Home Loan Bank of New York - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Borrowings total	$ 508.0	$ 1,310.0
Borrowings	$ 1,980.0	$ 1,190.0

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