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Regulatory Requirements - Narrative (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Public Utilities, General Disclosures [Line Items] |  |
Net worth requirement | $ 513.6 |
Cash and cash equivalents | 178.0 | $ 184.8
Assets serviced | 178,100.0 | 170,300.0
Owned MSRs |  |
Public Utilities, General Disclosures [Line Items] |  |
Assets serviced | 137,800.0 | $ 129,800.0
PHH Mortgage Corporation |  |
Public Utilities, General Disclosures [Line Items] |  |
Net worth | 639.5 |
Restrictive liquidity requirements | 136.6 |
Eligible liquidity | $ 217.8 |

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