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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Recorded Investment in Residential, Consumer and Credit Card Loans Based on Payment Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Net loans receivable | $ 4,385,566 | $ 4,422,644
Credit Card Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Net loans receivable | 12,683 | 11,785
Total | 29 | 189
Performing | Credit Card Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Net loans receivable | 12,634 | 11,753
Nonperforming | Credit Card Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Net loans receivable | $ 49 | $ 32

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