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Related-Party Transactions - Acquisitions from Consolidated CMBS Trusts (Details) - Reo Portfolio - CMBS - Investing and Servicing Segment - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2023 | Dec. 31, 2024
Related-Party Transactions |  |  |
Consideration transferred | $ 0 | $ 0 |
Assets acquired |  |  | $ 7,700,000

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