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Fair Value Measurements - Schedule of Sensitivity in the Fair Value of Servicing Assets to Adverse Changes in Key Assumptions (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Mar. 31, 2026 | Dec. 31, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | --- | --- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Servicing assets | $ 72,974 | $ 67,078 | $ 65,167 | $ 57,909 | $ 56,904 | $ 60,697
Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Servicing assets | 72,974 |  | 65,167 |  |  |
Level 3 | Servicing Assets |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Servicing assets | $ 72,974 |  | $ 65,167 |  |  |
Expected remaining weighted-average life (in years) | 1 year 2 months 12 days |  | 1 year 2 months 12 days |  |  |
Discount rate: |  |  |  |  |  |
Discount rates, impact of 100 basis point increase | $ (648) |  | $ (567) |  |  |
Discount rates, impact of 200 basis point increase | (1,296) |  | (1,134) |  |  |
Annualized net charge-off rate: |  |  |  |  |  |
Expected credit loss on rates on underlying loans, 10% adverse change | (573) |  | (536) |  |  |
Expected credit loss on rates on underlying loans, 20% adverse change | (1,146) |  | (1,071) |  |  |
Annualized prepayment rate: |  |  |  |  |  |
Expected prepayment rates, 10% adverse change | (2,212) |  | (1,892) |  |  |
Expected prepayment rates, 20% adverse change | $ (4,424) |  | $ (3,785) |  |  |

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- Definition Period between issuance and maturity of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition The hypothetical financial impact of a 10 percent adverse change of the expected credit losses, including expected static pool losses, on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4 + Details
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- Definition The hypothetical financial impact of a 20 percent adverse change of the expected credit, including expected static pool losses, on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4 + Details
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