VARIABLE INTEREST ENTITIES - Variable Interest Entities, Characteristics (Details) - SAFT 2013-1 Securitization Entity - VIE, consolidated - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Residential mortgage loan UPB and other collateral	$ 12,035,403	$ 10,752,079
Weighted average delinquency	4.70%	4.45%
Net credit losses	$ 139,908	$ 130,392
Face amount of debt held by third parties	11,050,277	9,897,879
Carrying value of bonds retained by Rithm Capital	933,189	927,490
Cash flows received by Rithm Capital on these bonds	$ 214,941	$ 330,197
Number of days delinquent (in days)	60 days