DERIVATIVE FINANCIAL INSTRUMENTS - Summary of Components of Interest Rate Swaps (Details) - Derivatives	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Interest rate swaps - FHLB advances
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Weighted Average Pay Rate	3.49%	3.49%
Weighted Average Receive Rate	4.31%	4.53%
Weighted Average Maturity in Years	2 years 6 months	3 years 3 months 18 days
Interest rate swaps - commercial loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Weighted Average Pay Rate		4.12%
Weighted Average Receive Rate		4.53%
Weighted Average Maturity in Years		2 years 8 months 12 days