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Regulatory Requirements - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Public Utilities, General Disclosures [Line Items]
Net worth requirement	$ 431.7
Cash and cash equivalents	201.6	$ 201.6
Assets serviced	159,500.0	169,700.0
Owned MSRs
Public Utilities, General Disclosures [Line Items]
Assets serviced	118,900.0	$ 122,700.0
PHH Mortgage Corporation
Public Utilities, General Disclosures [Line Items]
Net worth	578.1
Restrictive liquidity requirements	118.8
Eligible liquidity	$ 244.3

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