VARIABLE INTEREST ENTITIES - Variable Interest Entities, Characteristics (Details) - SAFT 2013-1 Securitization Entity - VIE, consolidated - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Variable Interest Entity [Line Items]
Residential mortgage loan UPB and other collateral	$ 11,437,660	$ 11,741,509
Weighted average delinquency	4.70%	4.00%
Net credit losses	$ 142,647	$ 133,727
Face amount of debt held by third parties	10,466,997	10,831,148
Carrying value of bonds retained by Rithm Capital	924,926	956,977
Cash flows received by Rithm Capital on these bonds	$ 38,006	$ 64,085
Number of days delinquent (in days)	60 days