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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Recorded Investment in Residential, Consumer and Credit Card Loans Based on Payment Activity (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans receivable	$ 6,400,512	$ 4,561,599
Credit card
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans receivable	13,701	13,143
Total	312	143
Performing | Credit card
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans receivable	13,615	12,981
Nonperforming | Credit card
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans receivable	$ 86	$ 162

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