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PORTFOLIO LOANS - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Net deferred loan origination costs | $ 12,000,000 |  | $ 12,000,000 |  | $ 13,500,000
Net accretable purchase accounting adjustments |  |  | (9,700,000) |  | (4,500,000)
Gross interest income that would have been recorded if impaired loans had been current | 100,000 | $ 200,000 | 600,000 | $ 900,000 |
Amount of interest collected and recognized on a cash basis | 0 | 0 | 0 | 0 |
Collateral dependent loans secured by real estate or business assets | 5,200,000 |  | 5,200,000 |  | $ 6,100,000
Loans in the process of foreclosure | 800,000 |  | 800,000 |  |
Retail loans | Commercial and Retail Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans purchased | $ 0 | $ 0 | 6,900,000 | $ 0 |
Commercial loans | Watch |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Limit above which loans are annually reviewed |  |  | 1,000,000 |  |
Commercial loans | Special Mention |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Limit above which loans are annually reviewed |  |  | 350,000 |  |
Commercial loans | Maximum |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Limit where loans are processed through an expedited underwriting process |  |  | $ 1,000,000 |  |

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- Definition Amount of increase (decrease) of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481696/310-30-50-2 + Details
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