Annual report pursuant to Section 13 and 15(d)

INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Summary of Excess MSRs Made Through Equity Method Investees (Details)

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INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Summary of Excess MSRs Made Through Equity Method Investees (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule of MSRs [Line Items]      
Carrying Value $ 5,686,233 $ 4,528,604 $ 2,334,232
Weighted Average Life (Years) 24 days    
Excess MSRs Investees      
Schedule of MSRs [Line Items]      
New Residential Interest in Investees 50.00% 50.00%  
Excess MSRs Investees | Agency      
Schedule of MSRs [Line Items]      
New Residential Interest in Investees 50.00%    
Excess MSRs Investees | Agency | Original and Recaptured Pools      
Schedule of MSRs [Line Items]      
Unpaid Principal Balance $ 33,592,554 $ 41,707,963  
Investee Interest in Excess MSR 66.70% 66.70%  
New Residential Interest in Investees 50.00% 50.00%  
Amortized Cost Basis $ 168,807 $ 198,261  
Carrying Value $ 226,843 $ 269,203  
Weighted Average Life (Years) 5 years 4 months 24 days 5 years 6 months