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Securitized Debt at Amortized Cost and Securitized Debt at Fair Value - Summary of Difference Between Aggregate Fair Value and Aggregate Unpaid Principal Balance of Securitized Debt at Fair Value (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items] |  |
Securitized debt, at fair value | $ 3,748,889 | $ 2,207,408
Fair Value |  |
Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items] |  |
Securitized debt, at fair value | 3,748,889 | 2,207,408
Unpaid Principal Balance |  |
Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items] |  |
Securitized debt, at fair value | 3,739,705 | 2,219,218
Difference |  |
Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items] |  |
Securitized debt, at fair value | $ 9,184 | $ (11,810)

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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/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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- Definition Securitized debt, at fair value. + References No definition available. + Details
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