v3.25.1
Reverse Mortgages - Schedule of Loans Held For Investment and HMBS Related Borrowings (Details) - USD ($)
$ in Millions
 3 Months Ended
Nov. 01, 2024
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Loans Held for Investment - Reverse Mortgages        
Loans Held For Investment, Reverse Mortgages, Unpaid Principal   $ 10,361.5   $ 10,699.5
Loans Held For Investment, Reverse Mortgages, Fair Value Adjustment   451.0   425.8
Beginning balance   11,125.3 $ 7,970.0  
Originations   277.1 250.3  
Repayments (principal payments received)   (786.1) (276.9)  
Loans held for sale, at fair value   (3.1) (1.0)  
Receivables   (2.5) (0.9)  
REO (Other assets)   (0.2) 0.0  
Other   0.0    
Change in fair value   202.1 183.5  
Securitized loans (pledged to HMBS-related borrowings)   10,676.0   10,950.8
Unsecuritized loans   136.5   $ 174.5
Ending balance   10,812.5 8,125.0  
HMBS Related Borrowings        
Beginning balance   (10,872.1) (7,797.3)  
Securitization of HECM loans accounted for as a financing   (309.1) (247.4)  
Additional proceeds from securitization of HECM loans and tails   (4.1) (3.4)  
Acquisition $ 2,900.0 0.0 0.0  
Acquisition   0.0 0.0  
Repayments (principal payments received)   777.1 272.1  
Change in fair value   (179.4) (169.0)  
Ending balance   (10,587.6) $ (7,945.0)  
Securitized loans (pledged to HMBS-related borrowings)   $ (10,600.0)