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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Activity Relating to Loan Portfolio (Parenthetical) (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
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Apr. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Realized loss from sale of mortgage loan receivable | [1] |  |  | $ 128,191 | $ 86,604 | $ 24,894
Credit loss allowance liability on unfunded commitments |  |  |  | $ 5,900 |  |
Hotel - Honolulu, Hi |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Realized loss from sale of mortgage loan receivable |  | $ 700 |  |  |  |
Massachusetts Healthcare |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Realized loss from sale of mortgage loan receivable |  |  | $ 127,500 |  |  |
Loans and leases receivable of written off |  |  | 136,600 |  |  |
Loans and leases receivable of interest received and unamortized origination fees |  |  | $ 9,100 |  |  |
[1] | During the year ended December 31, 2024, we recorded a $128.2 million net realized loss on investments, consisting of (i) a $127.5 million realized loss related to the extinguishment of the Massachusetts Healthcare Loan and (ii) a $0.7 million realized loss related to the sale of a commercial mortgage loan collateralized by a hotel property located in Honolulu, HI, which was sold at a price of 99.5%. During the year ended December 31, 2023, we recorded a $86.6 million realized loss on investments comprised of (i) a $4.8 million realized loss related to the acquisition of the Atlanta Hotel through a deed-in-lieu of foreclosure and (ii) a $82.0 million realized loss representing a write-off of previously recorded Specific CECL Allowance on one of our subordinate loans secured by an ultra-luxury residential property in Manhattan, NY. These losses were partially offset by a $0.2 million gain on investments recorded in connection with the sale of our entire interest in three commercial loans secured by properties in Europe and a partial interest in one commercial loan secured by property located in London, United Kingdom. During the year ended December 31, 2022, we recorded a $24.9 million realized loss on investments represented with a write-off of a previously recorded Specific CECL Allowance comprised of (i) a $17.9 million loss on a first mortgage loan secured by an urban predevelopment property following the sale of the underlying property, and (ii) a $7.0 million loss, related to a first mortgage secured by the Atlanta hotel in anticipation of consensual foreclosure in the first quarter of 2023.

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