VARIABLE INTEREST ENTITIES - Variable Interest Entities, Characteristics (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Carrying value of Rithm’s investments in unconsolidated commercial real estate VIEs	$ 67,819		$ 71,388
Variable Interest Entity, Not Primary Beneficiary | Commercial Real Estate
Variable Interest Entity [Line Items]
Carrying value of commercial real estate held within unconsolidated VIEs	48,438		0
Carrying value of Rithm’s investments in unconsolidated commercial real estate VIEs	19,933		$ 0
SAFT 2013-1 Securitization Entity | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Residential mortgage loan UPB and other collateral	$ 10,809,466	$ 12,137,481
Weighted average delinquency	4.20%	4.90%
Net credit losses	$ 167,519	$ 170,439
Face amount of debt held by third parties	9,840,864	11,228,461
Carrying value of bonds retained by Rithm Capital	867,134	920,904
Cash flows received by Rithm Capital on these bonds	$ 113,527	$ 173,765
Number of days delinquent (in days)	60 days