EXCESS MORTGAGE SERVICING RIGHTS - Schedule of Excess Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Servicing Assets at Fair Value [Line Items]
Rithm Capital’s investment	$ 8,895,074	$ 6,858,803
Excess mortgage servicing rights, at fair value
Servicing Assets at Fair Value [Line Items]
Rithm Capital’s investment	322,168	344,947
Excess MSRs
Servicing Assets at Fair Value [Line Items]
Rithm Capital’s investment	248,495	259,198
Excess MSR Joint Ventures
Servicing Assets at Fair Value [Line Items]
Rithm Capital’s investment	$ 73,673	$ 85,749

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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 https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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