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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS - REFUND ADVANCES (Details) - Tax Refund Solutions - Refund Advances - USD ($) $ in Thousands | 2 Months Ended | 3 Months Ended | 9 Months Ended
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Feb. 28, 2025 | Feb. 29, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Period Refund Advance tax credit product offered | 2 months | 2 months |  |  |  |
Refund Advances |  |  |  |  | $ 662,556 | $ 771,091
Net charge (credit) to the Provision for RAs, including ERAs |  |  | $ (1,454) | $ (2,311) | $ 9,947 | $ 22,249
Provision as a percentage of RAs originated , including ERAs |  |  |  |  | 1.50% | 2.89%
Refund Advances net charge-offs |  |  | $ (1,454) | $ (2,311) | $ 19,740 | $ 26,178
Refund Advances net charge-offs to total Refund Advances originated |  |  |  |  | 2.98% | 3.39%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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