CONSUMER LOANS - Schedule of Aggregate Unpaid Principal Balance and Aggregate Carrying Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
90+
Schedule of Equity Method Investments [Line Items]
UPB	$ 0	$ 0
Carrying Value	0	0
Carrying Value Over (Under) UPB	0	0
Consumer Portfolio Segment | Current | SpringCastle | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	270,509	325,192
Carrying Value	298,905	358,057
Carrying Value Over (Under) UPB	28,396	32,865
Consumer Portfolio Segment | Current | Marcus | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	1,193,531	0
Carrying Value	1,125,682	0
Carrying Value Over (Under) UPB	(67,849)	0
Consumer Portfolio Segment | 90+ | SpringCastle | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	4,544	5,236
Carrying Value	4,976	5,699
Carrying Value Over (Under) UPB	432	463
Consumer Portfolio Segment | 90+ | Marcus | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	6,910	0
Carrying Value	6,517	0
Carrying Value Over (Under) UPB	(393)	0
Consumer Portfolio Segment | Past Due | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	1,475,494	330,428
Carrying Value	1,436,080	363,756
Carrying Value Over (Under) UPB	(39,414)	33,328
Consumer Portfolio Segment | Past Due | SpringCastle | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	275,053	330,428
Carrying Value	303,881	363,756
Carrying Value Over (Under) UPB	28,828	33,328
Consumer Portfolio Segment | Past Due | Marcus | Total Rithm Capital Stockholders’ Equity
Schedule of Equity Method Investments [Line Items]
UPB	1,200,441	0
Carrying Value	1,132,199	0
Carrying Value Over (Under) UPB	$ (68,242)	$ 0