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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Overall Statistics for Loan Portfolio (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) Loan | Dec. 31, 2024 USD ($) Loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of loans | Loan | 54 | 45
Number of loans | Loan | 54 | 46
Principal balance | $ 8,342,902 | $ 7,134,992
Carrying value, net | 8,303,645 | 7,145,356
Unfunded loan commitments | $ 1,034,562 | $ 840,627
Weighted-average cash coupon | 7.00% | 7.50%
Weighted-average remaining fully-extended term | 3 years | 2 years 6 months
Weighted-average expected term | 2 years 2 months 12 days | 1 year 10 months 24 days
Principal Balance |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Principal balance | $ 8,728,632 | $ 7,550,410

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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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