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Regulatory Requirements - Narrative (Details) - USD ($)
1 Months Ended
Oct. 31, 2020
Mar. 31, 2022
Dec. 31, 2021
Public Utilities, General Disclosures [Line Items]      
Net worth requirement   $ 343,800,000  
Cash and cash equivalents   268,691,000 $ 192,792,000
PHH Mortgage Corporation      
Public Utilities, General Disclosures [Line Items]      
Net worth   636,300,000  
Restrictive liquidity requirements   37,100,000  
Cash and cash equivalents   $ 239,200,000  
CA DBO      
Public Utilities, General Disclosures [Line Items]      
Litigation settlement expense $ 62,000