v3.26.1
LOANS HELD-FOR-INVESTMENT - Schedule of Current Expected Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance $ 3,454,589  
(Reversal of) provision for credit losses (7,171)  
Charge-offs of CECL   $ (90,846)
Ending balance 3,088,361  
Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 316,848 406,730
(Reversal of) provision for credit losses (7,318) (6,241)
Charge-offs of CECL 0  
Ending balance 309,530 309,643
First mortgage loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Charge-offs of CECL   (87,475)
First mortgage loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 287,228 381,825
(Reversal of) provision for credit losses (7,711) (11,922)
Charge-offs of CECL  
Ending balance 279,517 282,428
Unfunded First Mortgage Loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Charge-offs of CECL   0
Unfunded First Mortgage Loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 18,130 13,917
(Reversal of) provision for credit losses (550) 5,486
Charge-offs of CECL 0  
Ending balance 17,580 19,403
Liquid Corporate Senior Loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 22,664  
(Reversal of) provision for credit losses (97)  
Charge-offs of CECL   (3,371)
Ending balance 22,732  
Liquid Corporate Senior Loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 4,245 5,814
(Reversal of) provision for credit losses (97) (2)
Ending balance 4,148 2,441
Unfunded or Unsettled Liquid Senior Loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Charge-offs of CECL   0
Unfunded or Unsettled Liquid Senior Loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 0 0
(Reversal of) provision for credit losses 0 0
Charge-offs of CECL 0  
Ending balance 0 0
Corporate Senior Loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 357,474  
(Reversal of) provision for credit losses 637  
Charge-offs of CECL   0
Ending balance 393,427  
Corporate Senior Loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 6,405 4,497
(Reversal of) provision for credit losses 637 260
Charge-offs of CECL 0  
Ending balance 7,042 4,757
Unfunded Corporate Senior Loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Charge-offs of CECL   0
Unfunded Corporate Senior Loans | Gross Credit Losses    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 840 677
(Reversal of) provision for credit losses 403 (63)
Charge-offs of CECL 0  
Ending balance $ 1,243 $ 614