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COMMITMENTS, GUARANTEES AND CONTINGENCIES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Allowance for unfunded commitments	$ 1,100,000	$ 1,800,000
Loss Sharing Relationship
Loss Contingencies [Line Items]
Reserve liability related to multifamily DUS Program	700,000	500,000
Multifamily | Loss Sharing Relationship
Loss Contingencies [Line Items]
UPB of loans sold through DUS	1,800,000,000	1,800,000,000
Loss incurred - related to DUS	0	0	$ 0
Investment commitment
Loss Contingencies [Line Items]
Investment in qualifying small businesses	$ 9,900,000	$ 10,700,000

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