XML 107 R84.htm IDEA: XBRL DOCUMENT v3.24.3
Other Financing Liabilities - Schedule of Financing Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Debt Instrument [Line Items]          
Other financing liabilities, at fair value $ 826.2   $ 826.2   $ 900.0
Servicing and subservicing fees 211.1 $ 237.8 626.5 $ 707.5  
Proceeds from other financing liabilities - Excess Servicing Spread (ESS) liability     0.0 $ 68.7  
Other counterparties for Pledged MSR liab. | Financing Liabilities          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value 133.3   133.3   115.3
ESS Financing Liability          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value 243.3   243.3   248.9
ESS Financing Liability          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value 577.7   577.7   645.5
Residential Asset Securitization Trust          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value 5.2   5.2   5.6
Original Rights to Mortgage Servicing Rights Agreements | ESS Financing Liability          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value 116.8   116.8   121.0
MAV MSR Sale Agreements | ESS Financing Liability          
Debt Instrument [Line Items]          
Other financing liabilities, at fair value $ 327.5   $ 327.5   $ 409.2