v3.26.3
MSR Related Financing Liabilities, at Fair Value – Schedule of Results of Operations in Connection With MSR Transfer Agreements that Do Not Qualify for Sale Accounting (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Related Party Transaction [Line Items]        
Proceeds from Collection of Loans Receivable $ 19.7 $ 31.4 $ 78.2 $ 96.3
Less: Subservicing fee retained by Onity (3.3) (5.3) (12.8) (16.7)
Ancillary and other settlement 1.0 2.8 7.4 8.0
MSR Pledged liability expense 29.9 41.7 110.7 126.6
Financing Liability Mortgage Servicing Rights Pledged [Member]        
Related Party Transaction [Line Items]        
MSR Pledged liability expense 17.4 28.9 72.8 87.7
Financing Liability Excess Servicing Spread [Member]        
Related Party Transaction [Line Items]        
MSR Pledged liability expense $ 12.5 $ 12.7 $ 37.9 $ 38.9