Advances - Schedule of Advance Payments by Financial Institution on Foreclosed Properties (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Advances On Behalf of Borrowers [Line Items]
Advances	$ 487.9	$ 584.6
Allowance for losses	(4.5)	(7.4)	$ (7.3)	$ (6.2)
Advances, net	483.4	577.2	$ 678.8
Advanaces | Counterparty Risk | Subservicing Client One
Advances On Behalf of Borrowers [Line Items]
Advances, net	27.7
Advanaces | Counterparty Risk | Subservicing Client Two
Advances On Behalf of Borrowers [Line Items]
Advances, net	29.6
Principal and interest
Advances On Behalf of Borrowers [Line Items]
Advances	98.9	150.1
Taxes and insurance
Advances On Behalf of Borrowers [Line Items]
Advances	278.8	314.2
Foreclosures, bankruptcy, REO and other (1)
Advances On Behalf of Borrowers [Line Items]
Advances	110.2	$ 120.3
Foreclosures, bankruptcy, REO and other (1) | New York
Advances On Behalf of Borrowers [Line Items]
Advances	$ 26.5