EXCESS MORTGAGE SERVICING RIGHTS ASSETS - Summary of Excess MSRs Made Through Equity Method Investees (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Schedule of Investments in Mortgage Servicing Rights [Line Items]
Weighted Average Life (Years)	10 months 24 days
Excess MSRs Investees
Schedule of Investments in Mortgage Servicing Rights [Line Items]
New Residential Interest in Investees	50.00%	50.00%
Excess MSRs Investees \| Agency
Schedule of Investments in Mortgage Servicing Rights [Line Items]
New Residential Interest in Investees	50.00%
Excess MSRs Investees \| Agency \| Agency
Schedule of Investments in Mortgage Servicing Rights [Line Items]
Unpaid Principal Balance	$ 25,547,389
Investee Interest in Excess MSR	66.70%
New Residential Interest in Investees	50.00%
Amortized Cost Basis	$ 127,391
MSRs	$ 166,868
Weighted Average Life (Years)	5 years 9 months 18 days

The equity method investee's percentage ownership of Excess MSRs portfolio.

No definition available.

Name:	nrz_InvesteeInterestInExcessMsr
Namespace Prefix:	nrz_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

[Line Items] for Schedule of Investments in Mortgage Servicing Rights [Table]

+ References

No definition available.

+ Details

Name:	nrz_ScheduleofInvestmentsinMortgageServicingRightsLineItems
Namespace Prefix:	nrz_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The unpaid principal balance of underlying loans.

+ References

No definition available.

+ Details

Name:	nrz_UnpaidPrincipalBalanceofUnderlyingLoans
Namespace Prefix:	nrz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Weighted average expected timing of the receipt of expected cash flows for this investment.

+ References

No definition available.

+ Details

Name:	nrz_WeightedAverageLifeYears
Namespace Prefix:	nrz_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

+ Details

Name:	us-gaap_ServicingAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

+ Details

Name:	us-gaap_ServicingAssetAtAmortizedValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nrz_ExcessMortgageServicingRightsInvesteesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnderlyingAssetClassAxis=us-gaap_AgencySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=nrz_MSRPool1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: