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SERVICER ADVANCE INVESTMENTS - Narrative (Details) - Advance Purchaser
$ in Millions
Sep. 30, 2024
USD ($)
Schedule of Equity Method Investments [Line Items]  
Capital distributed to third-party co-investors $ 71.5
Capital distributed to new residential $ 597.9
Servicer advance investments  
Schedule of Equity Method Investments [Line Items]  
Ownership percentage 89.30%