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Rights to MSRs - UPB of Loans Serviced on behalf of NRZ (Details)
$ in Thousands
Mar. 31, 2021
USD ($)
Servicing Assets at Fair Value [Line Items]  
UPB of rights to MSRs sold $ 64,300,000
New Residential Investment Corp  
Servicing Assets at Fair Value [Line Items]  
UPB of rights to MSRs sold 64,332,200
Outstanding servicing advances 535,500
New Residential Investment Corp | Mortgage Servicing Rights Title Retained  
Servicing Assets at Fair Value [Line Items]  
UPB of rights to MSRs sold 13,673,665
New Residential Investment Corp | Mortgage Servicing Rights Title Transferred  
Servicing Assets at Fair Value [Line Items]  
UPB of rights to MSRs sold 48,153,327
New Residential Investment Corp | Subservicing Assets  
Servicing Assets at Fair Value [Line Items]  
UPB of rights to MSRs sold $ 2,505,208