v3.26.1
Related-Party Transactions - Investments in Loans and Securities (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
mortgageLoan
Mar. 31, 2026
USD ($)
extension
facility
Feb. 28, 2026
USD ($)
Jun. 30, 2025
USD ($)
extension
May 31, 2025
USD ($)
Jan. 31, 2025
USD ($)
unit
Dec. 31, 2024
USD ($)
loan
May 31, 2024
USD ($)
extension
Jul. 31, 2023
Dec. 31, 2012
USD ($)
shares
Jun. 30, 2026
USD ($)
mortgageLoan
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
mortgageLoan
loan
transaction
data_center
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2012
USD ($)
shares
Dec. 31, 2025
USD ($)
shares
Jul. 31, 2024
USD ($)
Mar. 31, 2022
USD ($)
Related-Party Transactions                                    
Number of related-party loan transactions | transaction                         10          
Unpaid principal balance $ 22,809,676                   $ 22,809,676   $ 22,809,676     $ 21,922,738    
Percentage of pre-leased data center facilities                         100.00%          
Loss on extinguishment of debt                     0 $ (19,990) $ 335 $ (19,990)        
Loans held-for-investment $ 19,816,968                   $ 19,816,968   $ 19,816,968     $ 18,862,712    
Basis spread on variable rate 3.30%                   3.30%   3.30%          
SEREF                                    
Related-Party Transactions                                    
Number of shares acquired (in shares) | shares                             9,140,000      
Remaining held (in shares) | shares                               536,129    
Number of shares redeemed (in shares) | shares                         536,129          
Proceeds from shares redeemed                         $ 600          
Affiliated Entity | SEREF                                    
Related-Party Transactions                                    
Number of shares acquired (in shares) | shares                   9,140,000                
Investment securities value at acquisition                   $ 14,700         $ 14,700      
Investment in equity securities percentage ownership acquired                   4.00%                
Remaining held (in shares) | shares                               536,129    
Number of shares redeemed (in shares) | shares                         536,129          
Proceeds from shares redeemed                         $ 600          
Affiliated Entity | Starwood European Real Estate Debt Finance II LP                                    
Related-Party Transactions                                    
Unpaid principal balance   $ 3,500                                
Senior Debt Securities Acquired from Note Offering | Affiliated Entity                                    
Related-Party Transactions                                    
Amounts of transaction $ 95,000                                  
Face amount $ 211,700                   $ 211,700   $ 211,700          
Initial term 10 years                                  
Coupon Rate 7.33%                   7.33%   7.33%          
Collateralized Loan, Diversified Portfolio of Logistics Assets | Affiliated Entity | First mortgage loan participation                                    
Related-Party Transactions                                    
Unpaid principal balance   $ 969,200                                
Number of cross-collateralized facilities | facility   3                                
Construction of Data Center in Herndon                                    
Related-Party Transactions                                    
Number of data center facilities | data_center                         4          
Number of co-originated loans we are minority lender on | loan                         3          
33.33% Origination Loan | Affiliated Entity | Affiliates Of Manager | Borrower                                    
Related-Party Transactions                                    
Limited partnership interest         92.50%                          
Construction of Luxury Condominium Project | Affiliated Entity | Affiliates Of Manager | Borrower                                    
Related-Party Transactions                                    
Limited partnership interest           90.00%                        
Development and Recapitalization of Luxury Rental Cabins | Affiliated Entity                                    
Related-Party Transactions                                    
Loan extension term             24 months                      
Conditional extension term             1 year                      
Decrease in interest rate             2.25%                      
Loans payable, basis spread             4.25%                      
Loan payable, payment deferral term                 10 months                  
Loan payable, payment deferral interest rate                 3.00%                  
Loans payable $ 147,500                   $ 147,500   $ 147,500          
Sale of Participating Interests in Commercial Loans to Private Investment Fund | Affiliated Entity                                    
Related-Party Transactions                                    
Amounts of transaction             $ 40,100                      
Number of commercial loans | loan             4                      
Future Funding Commitments | Affiliated Entity                                    
Related-Party Transactions                                    
Amounts of transaction             $ 15,900                      
Fees Received | Affiliated Entity                                    
Related-Party Transactions                                    
Amounts of transaction                     100 100 200 200        
Refinancing of Medical Office Portfolio | Affiliated Entity                                    
Related-Party Transactions                                    
Loan number of extension options | extension               3                    
Loan extension term               1 year                    
Loans payable, basis spread               5.50%                    
Purchase of FREMF 2024-KF163 | Affiliated Entity | Primary Beneficiary                                    
Related-Party Transactions                                    
Loans held-for-investment                                 $ 77,100  
Basis spread on variable rate                                 6.00%  
Newly Formed FREMF 2024-KF163 Trust | Affiliated Entity | Primary Beneficiary                                    
Related-Party Transactions                                    
Loans held-for-investment $ 949,000                   $ 949,000   $ 949,000          
Number of mortgage loans | mortgageLoan 23                   23   23          
Newly Formed FREMF 2024-KF163 Trust | Affiliates Of Manager | Primary Beneficiary                                    
Related-Party Transactions                                    
Loans held-for-investment $ 495,000                   $ 495,000   $ 495,000          
Number of mortgage loans | mortgageLoan 11                   11   11          
Loans Payable | Lotus Infrastructure Partners, Domestic Natural Gas Power Plant | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount   $ 150,000                                
Initial term   5 years                                
Pricing margin (as a percent)   3.50%                                
Loans Payable | Collateralized Loan, Diversified Portfolio of Logistics Assets | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount   $ 347,300                                
Loans Payable | 24.5% Origination Loan | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount   $ 653,000                                
Initial term   4 years                                
Pricing margin (as a percent)   2.70%                                
Percentage of origination of loan   24.50%                                
Amount funded   $ 30,700                                
Loan number of extension options | extension   2                                
Loan extension term   1 year                                
Percentage of loan originated by third party   51.00%                                
Loans Payable | 24.5% Origination Loan | Affiliated Entity | Starwood Property Trust Inc                                    
Related-Party Transactions                                    
Face amount   $ 160,000                                
Loans Payable | 24.5% Origination Loan | Related Party                                    
Related-Party Transactions                                    
Percentage of loan originated by third party   24.50%                                
Loans Payable | 49% Origination Loan | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount       $ 587,100               $ 587,100   $ 587,100        
Initial term       4 years                            
Pricing margin (as a percent)       3.00%                            
Percentage of origination of loan       49.00%               49.00%   49.00%        
Amount funded $ 74,100                   $ 74,100   $ 74,100          
Loan number of extension options | extension       2                            
Loan extension term       1 year                            
Percentage of loan originated by third party       51.00%               51.00%   51.00%        
Loans Payable | 49% Origination Loan | Affiliated Entity | Starwood Property Trust Inc                                    
Related-Party Transactions                                    
Face amount       $ 287,700               $ 287,700   $ 287,700        
Loans Payable | 33.33% Origination Loan | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount         $ 638,500                          
Initial term         5 years                          
Pricing margin (as a percent)         2.50%                          
Percentage of origination of loan         33.33%                          
Amount funded 157,600                   157,600   157,600          
Percentage of loan originated by third party         66.67%                          
Floor interest rate (as a percent)         2.00%                          
Loans Payable | 33.33% Origination Loan | Affiliated Entity | Starwood Property Trust Inc                                    
Related-Party Transactions                                    
Face amount         $ 212,800                          
Loans Payable | Construction of Luxury Condominium Project | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount           $ 388,400                        
Initial term           4 years                        
Pricing margin (as a percent)           4.25%                        
Percentage of origination of loan           49.00%                        
Amount funded $ 87,900                   $ 87,900   87,900          
Loan extension term           1 year                        
Percentage of loan originated by third party           51.00%                        
Floor interest rate (as a percent)           3.00%                        
Number of units | unit           81                        
Loans Payable | Construction of Luxury Condominium Project | Affiliated Entity | Starwood Property Trust Inc                                    
Related-Party Transactions                                    
Face amount           $ 190,300                        
Loans Payable | Development and Recapitalization of Luxury Rental Cabins | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount                               $ 25,000   $ 200,000
Loans Payable | Refinancing of Medical Office Portfolio | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount               $ 39,500                    
Initial term               2 years                    
Repayments of debt     $ 39,500                              
Loss on extinguishment of debt                         $ 300          
MED 2024-MOB | Secured Borrowings | Refinancing of Medical Office Portfolio | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount               $ 450,500                    
Horizontal Risk Retention Certificates | Refinancing of Medical Office Portfolio | Affiliated Entity                                    
Related-Party Transactions                                    
Face amount               $ 23,000