v3.26.3
Loan Portfolio - Summary of Carrying Value and Significant Characteristics of Loans Receivable Held-for-investment on Non-accrual Status (Parenthetical) (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Oct. 31, 2026
USD ($)
Jul. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Loan
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Unpaid Principal Balance Before Principal Charge-Off / Valuation Allowance               $ 71,300
Specific CECL reserves           $ 515,600   365,400
Loan gross sales price           260,325 [1] $ 304,004  
Principal Charge-Off [1]           71,264    
Loans Receivable remaining amount               53,500
Interest income from loan           3,000   3,000
Interest income               $ 6,000
Multifamily                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Unpaid Principal Balance Before Principal Charge-Off / Valuation Allowance     $ 75,600          
Office | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Loan gross sales price   $ 70,700            
Risk Rating 4                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Number of risk rated loans | Loan               4
Risk Rating Five                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Principal Charge-Off         $ 17,800     $ 39,100
Paid to our financing counterparty     $ 2,600   $ 2,600      
Number of risk rated loans | Loan               5
Risk Rating Five | Office | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Loan gross sales price [2],[3]           69,854    
Principal Charge-Off [2],[3]           $ 41,409    
Subsequent Event | Multifamily | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Loan gross sales price $ 245,000              
Subsequent Event | Office | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Loan gross sales price 65,700              
Subsequent Event | Risk Rating Five | Multifamily | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Loan gross sales price $ 245,000              
Scenario Forecast | Multifamily | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Incremental loss       $ 5,000        
Scenario Forecast | Office | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Incremental loss       5,400        
Scenario Forecast | Risk Rating Five | Multifamily | CA                
Schedule of Loans Receivable Allowance for Credit Losses [Line Items]                
Incremental loss       $ 5,000        
[1] For each loan receivable sold, the financial asset was legally isolated, control of the financial asset was transferred to the transferee, the transfer imposed no condition that would constrain the transferee from pledging the financial asset received, and we have no continuing involvement with the transferred financial asset. As such, we have determined each transaction constituted a sale.
[2] In July 2026, this loan was sold for a gross sales price of $70.7 million. Prior to the sale, this loan was on non-accrual status, in maturity default, and had a held-for-sale carrying value of $69.9 million.
[3] Reflects risk rating of the loan receivable prior to the loan sale or reclassification to held-for-sale.