v3.26.1
Short-Term Debt - Mortgage Loan Participation and Sale Agreement (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
item
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
item
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Carrying value:          
Loans held for sale $ 7,819,890,000   $ 7,819,890,000   $ 9,123,410,000
Mortgage loan participation and sale agreement secured by mortgage loan participation certificates $ 696,475,000   $ 696,475,000   696,618,000
Mortgage Loan Participation and Sale Agreement member          
Short-Term Debt [Line Items]          
Number of borrowing facilities secured by loans held for sale | item 2   2    
During the quarter:          
Short-Term Debt, Average Outstanding Amount $ 292,650,000 $ 283,853,000      
Weighted-average interest rate 4.95% 5.65%      
Total interest expense $ 3,847,000 $ 4,168,000      
Carrying value:          
Amortization of debt issuance costs 234,000 172,000      
Mortgage Loan Participation and Sale Agreement member | Maximum          
Carrying value:          
Mortgage loan participation and sale agreement secured by mortgage loan participation certificates 699,793,000 701,233,000      
Note Payable          
Carrying value:          
Unamortized debt issuance costs (4,112,000)   $ (4,112,000)   (3,979,000)
Amortization of debt issuance costs 1,000,000 $ 2,700,000 1,300,000 $ 3,200,000  
Mortgage Loan Participation and Sale Agreement member          
During the quarter:          
Short-Term Debt, Average Outstanding Amount     $ 307,111,000 $ 272,512,000  
Weighted-average interest rate     4.97% 5.64%  
Total interest expense     $ 8,041,000 $ 7,972,000  
Carrying value:          
Unpaid principal balance of mortgage loan participation and sale agreement secured by mortgage loan participation certificates 696,475,000   696,475,000   697,087,000
Unamortized debt issuance costs         (469,000)
Mortgage loan participation and sale agreement secured by mortgage loan participation certificates $ 696,475,000   $ 696,475,000   $ 696,618,000
Weighted average interest rate 4.90%   4.90%   4.94%
Amortization of debt issuance costs     $ 469,000 344,000  
Mortgage Loan Participation and Sale Agreement member | Maximum          
Carrying value:          
Mortgage loan participation and sale agreement secured by mortgage loan participation certificates     699,793,000 $ 701,233,000  
Asset Pledged as Collateral without Right          
Carrying value:          
Loans held for sale $ 7,686,901,000   7,686,901,000   $ 8,983,503,000
Asset Pledged as Collateral without Right | Mortgage Loan Participation and Sale Agreement member          
Carrying value:          
Loans held for sale $ 733,023,000   $ 733,023,000   $ 738,247,000