MSR Related Financing Liabilities, at Fair Value - Schedule of MSR Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2025	Dec. 31, 2024
Servicing Liabilities at Fair Value [Line Items]
MSR related financing liabilities, at fair value		$ 842.0	$ 846.9
Financing Liability Excess Servicing Spread
Servicing Liabilities at Fair Value [Line Items]
MSR related financing liabilities, at fair value		268.8	263.3
ESS Financing Liability
Servicing Liabilities at Fair Value [Line Items]
MSR related financing liabilities, at fair value		573.2	$ 583.5
Rithm | ESS Financing Liability
Servicing Liabilities at Fair Value [Line Items]
MSR related financing liabilities, at fair value		110.6
Rithm | Original Rights to MSRs Agreements | Financing Liabilities
Servicing Liabilities at Fair Value [Line Items]
MSR related financing liabilities, at fair value		$ 110.6
MAV Asset Vehicle LLC
Servicing Liabilities at Fair Value [Line Items]
UPB of MSRs sold	$ 2,300.0