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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Activity Relating to Loan Portfolio (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Principal Balance |  |  |  |
Principal value, beginning balance |  | $ 8,384,575 |  |
New loan fundings |  | 495,280 | $ 181,017 |
Principal value, ending balance |  | 8,329,221 |  |
Specific CECL Allowance |  |  |  |
Specific provision for loan loss, beginning |  | (26,482) |  |
Specific provision for loan loss, ending |  | (35,319) |  |
Carry Value, Net |  |  |  |
Carrying value, beginning balance |  | 693,700 |  |
Valuation allowance, loan held for sale |  | (679) | (86,604) |
Carrying value, ending balance |  | 461,500 |  |
General CECL allowance |  | (35,319) |  | $ (26,482)
Carrying value, net |  | 8,293,902 |  | $ 8,358,093
Commercial Mortgage and Subordinated Portfolio Segment |  |  |  |
Principal Balance |  |  |  |
Principal value, beginning balance |  | 8,610,110 |  |
New loan fundings |  | 495,280 |  |
Add-on loan fundings |  | 437,838 |  |
Loan repayments and sale |  | (758,889) |  |
Gain (loss) on foreign currency translation |  | (76,324) |  |
Valuation allowance, loan held for sale |  | (679) |  |
Principal value, ending balance |  | 8,707,336 |  |
Deferred Fees/Other Items |  |  |  |
Deferred fees/other items, beginning |  | (32,535) |  |
Gain (loss) on foreign currency translation |  | 221 |  |
Deferred fees and other items |  | (18,540) |  |
Amortization of fees |  | 15,239 |  |
Deferred fees/other items, ending |  | (35,615) |  |
Specific CECL Allowance |  |  |  |
Specific provision for loan loss, beginning | $ (133,500) | (193,000) | (133,500) |
Increase in Specific CECL Allowance, net |  | (149,500) |  |
Specific provision for loan loss, ending | $ (193,000) | (342,500) | $ (193,000) |
Carry Value, Net |  |  |  |
Carrying value, beginning balance |  | 8,384,575 |  |
Add-on loan fundings |  | 437,838 |  |
Loan repayments |  | (758,889) |  |
Gain (loss) on foreign currency translation |  | (76,103) |  |
Valuation allowance, loan held for sale |  | (679) |  |
Deferred fees and other items |  | (18,540) |  |
Amortization of fees |  | 15,239 |  |
Carrying value, ending balance |  | $ 8,329,221 |  |

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