MSR Related Financing Liabilities, at Fair Value - Schedule of Assets, Liabilities, Servicing and Subservicing Fees Related to NRZ Agreements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Servicing Liabilities at Fair Value [Line Items]
Servicing Asset at Fair Value, Amount	$ 2,825.3	$ 2,466.3	$ 2,272.2	$ 2,665.2
Due to NRZ	47.9	63.4
Other financing liabilities	842.0	846.9
Servicing fees collected on behalf of NRZ	128.4	139.1	308.9
Less: Subservicing fee retained	(21.9)	(26.6)	(77.6)
Ancillary and other settlement	10.9	11.1	13.5
Financing Interest Expense	169.5	175.4	296.3
MAV Asset Vehicle LLC
Servicing Liabilities at Fair Value [Line Items]
Financing Interest Expense	44.8	54.0	57.5
Financing Liability - MSRs Pledged
Servicing Liabilities at Fair Value [Line Items]
Financing Interest Expense	117.4	123.7	244.8
Financing Liability Excess Servicing Spread
Servicing Liabilities at Fair Value [Line Items]
Other financing liabilities	268.8	263.3
Financing Interest Expense	$ 52.1	$ 51.8	$ 51.5