VARIABLE INTEREST ENTITIES - Variable Interest Entities, Characteristics (Details) - SAFT 2013-1 Securitization Entity - VIE, consolidated - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Variable Interest Entity [Line Items]
Residential mortgage loan UPB and other collateral	$ 11,481,471	$ 11,855,823
Weighted average delinquency	3.40%	5.30%
Net credit losses	$ 129,047	$ 105,652
Face amount of debt held by third parties	10,584,528	10,929,618
Carrying value of bonds retained by Rithm Capital	905,695	1,014,469
Cash flows received by Rithm Capital on these bonds	$ 124,942	$ 381,606
Number of days delinquent (in days)	60 days