v3.26.3
Loans Held for Sale - Fair Value - Schedule of Loans Held for Sale Fair Value (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance $ 3,601.9 $ 2,048.3 $ 1,891.7 $ 1,290.2  
Originations and purchases 7,976.9 7,410.2 24,052.2 17,572.2  
Proceeds from sales (8,426.9) (7,421.0) (22,352.3) (16,636.6)  
Principal collections (103.0) (57.8) (249.9) (129.2)  
Reverse mortgage loans, at fair value (1) 0.6 6.1 3.5 11.8  
Receivables (66.0) (15.8) (137.7) (36.5)  
REO (Other assets) (33.2) (15.9) (90.1) (41.3)  
Advances (incl. capitalization upon Ginnie Mae modifications) 5.6 5.5 17.3 15.7  
Gain (loss) on loans held for sale, at fair value (2) (230.6) (48.6) (439.0) (157.5)  
Other (3) 22.0 4.6 51.6 26.8  
Ending balance 2,747.3 1,915.6 2,747.3 1,915.6  
Principal amount outstanding on loans held for sale 3,005.8   3,005.8   $ 2,008.5
Premium (discount) balance on loans held for sale (190.6)   (190.6)   (97.9)
Fair value adjustment to loans held for sale (67.9)   (67.9)   (18.9)
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure 2,747.3 $ 1,915.6 2,747.3 $ 1,915.6 1,891.7
GSE loans          
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance     482.8    
Ending balance 857.4   857.4    
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure 857.4   857.4   482.8
Government - Forward loans          
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance     550.0    
Ending balance 313.3   313.3    
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure 313.3   313.3   550.0
Repurchased Ginnie Mae Loans          
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance     31.2    
Ending balance 55.7   55.7    
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure 55.7   55.7   31.2
Reverse Loans          
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance     722.2    
Ending balance 1,357.2   1,357.2    
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure 1,357.2   1,357.2   722.2
Other residential mortgage loans (3)          
Movement In Loans Held For Sale At Fair Value [Roll Forward]          
Beginning balance     105.5    
Ending balance 163.7   163.7    
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans Held-for-sale, Fair Value Disclosure $ 163.7   $ 163.7   $ 105.5