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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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