Annual report pursuant to Section 13 and 15(d)

MORTGAGE SERVICING RIGHTS AND MSR FINANCING RECEIVABLES - Schedule of Servicing Fee Revenue (Details)

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MORTGAGE SERVICING RIGHTS AND MSR FINANCING RECEIVABLES - Schedule of Servicing Fee Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule of Investments in Mortgage Servicing Rights [Line Items]      
Less: subservicing expense $ (201,444) $ (227,482) $ (176,784)
Change in valuation inputs and assumptions 591,439 166,436  
(Gain) loss realized 647 (3,100)  
Servicing revenue, net (555,041) 385,159 528,595
Change in fair value of MSR financing receivables (279,168) (189,023) 31,550
MSRs      
Schedule of Investments in Mortgage Servicing Rights [Line Items]      
Change in valuation inputs and assumptions 536,694 187,530  
(Gain) loss realized 2,396 3,285  
MSRs Excluding Excess Spread Financing      
Schedule of Investments in Mortgage Servicing Rights [Line Items]      
Servicing fee revenue 1,224,060 899,623 589,546
Ancillary and other fees 110,640 198,486 130,294
Servicing fee revenue and fees 1,334,700 1,098,109 719,840
Realization of cash flows (1,360,954) (530,031) (256,915)
Change in valuation inputs and assumptions (531,183) (186,204) 68,587
(Gain) loss realized 2,396 3,285 (2,917)
Servicing revenue, net (555,041) 385,159 528,595
Excess Spread Financing      
Schedule of Investments in Mortgage Servicing Rights [Line Items]      
Realization of cash flows (8,700) (7,100) (1,200)
Change in valuation inputs and assumptions 5,500 1,300 7,400
Mortgage Servicing Rights Financing Receivable | New Residential Mortgage LLC      
Schedule of Investments in Mortgage Servicing Rights [Line Items]      
Servicing fee revenue 384,260 513,172 705,812
Ancillary and other fees 74,421 119,570 146,829
Less: subservicing expense (151,109) (196,726) (251,184)
Servicing fee revenue and fees 307,572 436,016 601,457
Realization of cash flows (222,674) (203,732) (197,703)
Change in valuation inputs and assumptions 54,745 (21,094) (230,036)
(Gain) loss realized (1,749) (6,385) (783)
Change in fair value of MSR financing receivables $ (279,168) $ (189,023) $ 31,550