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Regulatory Requirements - Narrative (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Public Utilities, General Disclosures [Line Items]    
Net worth requirement $ 346,700  
Restrictive liquidity requirements 125,000  
Cash and cash equivalents 255,885 $ 192,792
PHH Mortgage Corporation    
Public Utilities, General Disclosures [Line Items]    
Net worth 623,200  
Restrictive liquidity requirements 37,600  
Cash and cash equivalents $ 202,800