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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
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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- Details

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- Details

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- Details

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