v3.26.1
Transactions With Related Parties - Affiliate Transactions (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
loan
Dec. 31, 2025
USD ($)
Sep. 30, 2025
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
loan
Jun. 30, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Related Party Transaction [Line Items]                
Maximum guarantee $ 5,500 $ 5,500     $ 5,500      
Investment in debt securities         66,650 $ 0    
Investment in unconsolidated entities         136,041 $ 107,712    
Book Value 322,060 217,488     $ 322,060      
Homebuilder Finance Joint Venture                
Related Party Transaction [Line Items]                
Investment in unconsolidated entities $ 28,500              
Ownership percentage 45.00%       45.00%      
Book Value $ 36,324 $ 0     $ 36,324      
Bank Loan Portfolio Joint Venture 1                
Related Party Transaction [Line Items]                
Investment in unconsolidated entities       $ 57,600        
Ownership percentage       29.00%   29.00%    
Bank Loan Portfolio Joint Venture 2                
Related Party Transaction [Line Items]                
Investment in unconsolidated entities     $ 44,700          
Ownership percentage     50.00%          
Bank Loan Portfolio Joint Venture                
Related Party Transaction [Line Items]                
Ownership percentage 35.00% 35.00%     35.00%      
Book Value $ 99,834 $ 111,010     $ 99,834      
Net Lease Joint Venture                
Related Party Transaction [Line Items]                
Ownership percentage 75.00% 75.00%     75.00%      
Book Value $ 185,902 $ 106,478     $ 185,902      
Bank Loan Portfolio Joint Venture and Homebuilder Finance Joint Venture                
Related Party Transaction [Line Items]                
Ownership percentage 35.00%       35.00%      
Securitized debt obligations, net                
Related Party Transaction [Line Items]                
Face Value $ 2,750,810 2,149,496     $ 2,750,810      
Principal Balance, collateral assets 3,387,699 2,622,021     3,387,699      
B-9 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Maximum borrowing capacity 770,800       770,800   $ 770,800  
B-8 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Maximum borrowing capacity   700,000            
B-7 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Maximum borrowing capacity     $ 453,100          
B-6 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Maximum borrowing capacity       $ 1,000,000   $ 1,000,000    
2026 FL6 Underlying Collateral Assets | Securitized debt obligations, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets             1,000,000  
2025 FL5 Underlying Collateral Assets | Securitized debt obligations, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets               $ 1,000,000
Related Party                
Related Party Transaction [Line Items]                
Face amount of loans 286,700   606,000 1,400,000 286,700 1,400,000    
Blackstone-Advised Investment Vehicles, or the Funds                
Related Party Transaction [Line Items]                
Maximum guarantee 900       900      
Blackstone-Advised Investment Vehicles, or the Funds | Related Party                
Related Party Transaction [Line Items]                
Investment in debt securities         66,700      
Capital commitment   75,000            
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | B-9 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets             71,400  
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | B-8 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets   $ 63,000            
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | B-7 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets     $ 33,000          
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | B-6 Term Loan | Secured term loans, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets       $ 83,900   $ 83,900    
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | 2026 FL6 Underlying Collateral Assets | Securitized debt obligations, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets             $ 11,000  
Blackstone-Advised Investment Vehicles, or the Funds | Related Party | 2025 FL5 Underlying Collateral Assets | Securitized debt obligations, net                
Related Party Transaction [Line Items]                
Principal Balance, collateral assets               $ 75,000
Blackstone-Advised Investment Vehicles, or the Funds | Senior Loans | Related Party                
Related Party Transaction [Line Items]                
Face Value 494,200       $ 494,200      
Count, financing provided | loan         4      
Blackstone-Advised Investment Vehicles, or the Funds | Mezzanine Loan | Related Party                
Related Party Transaction [Line Items]                
Face Value $ 32,300       $ 32,300      
Count, financing provided | loan         2      
Blackstone-Advised Investment Vehicles, or the Funds | Senior Loans, Blackstone-Advised Investment Vehicle                
Related Party Transaction [Line Items]                
Number of loans modified | loan 1       1