VARIABLE INTEREST ENTITIES - Others' Interest in Equity of Consumer Loan Companies (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Noncontrolling Interest [Line Items]
Total consolidated equity		$ 7,267,963	$ 7,061,626	$ 7,267,963	$ 7,061,626	$ 7,194,684	$ 7,010,068	$ 7,062,998	$ 6,669,380
Others’ interest in equity of consolidated subsidiary	[1]	59,907		59,907			$ 67,067
Net income (loss)		221,191	154,190	697,825	877,452
Others’ interest in net income (loss) of consolidated subsidiary		$ 4,848	$ 7,307	$ 10,437	$ 27,098
Advance Purchaser | Corporate Joint Venture
Noncontrolling Interest [Line Items]
Rithm Capital’s percentage ownership		89.30%	89.30%	89.30%	89.30%		89.30%
VIE, consolidated | Advance Purchaser
Noncontrolling Interest [Line Items]
Others’ ownership interest		10.70%		10.70%			10.70%
VIE, consolidated | Advance Purchaser | Weighted Average
Noncontrolling Interest [Line Items]
Others’ ownership interest		10.70%	10.70%	10.70%	10.70%
VIE, consolidated | Newrez Joint Ventures
Noncontrolling Interest [Line Items]
Others’ ownership interest		49.50%		49.50%			49.50%
VIE, consolidated | Newrez Joint Ventures | Weighted Average
Noncontrolling Interest [Line Items]
Others’ ownership interest		49.50%	49.50%	49.50%	49.50%
VIE, consolidated | Consumer Loan SPVs
Noncontrolling Interest [Line Items]
Others’ ownership interest		46.50%		46.50%			46.50%
VIE, consolidated | Consumer Loan SPVs | Weighted Average
Noncontrolling Interest [Line Items]
Others’ ownership interest		46.50%	46.50%	46.50%	46.50%
VIE, consolidated | Advance Purchaser
Noncontrolling Interest [Line Items]
Total consolidated equity		$ 117,966		$ 117,966			$ 114,180
Others’ interest in equity of consolidated subsidiary		12,600		12,600			12,193
Net income (loss)		13,229	$ (1,296)	19,786	$ 1,219
Others’ interest in net income (loss) of consolidated subsidiary		1,414	(139)	2,113	130
VIE, consolidated | Newrez Joint Ventures
Noncontrolling Interest [Line Items]
Total consolidated equity		18,330		18,330			25,124
Others’ interest in equity of consolidated subsidiary		9,073		9,073			12,437
Net income (loss)		544	952	1,238	4,374
Others’ interest in net income (loss) of consolidated subsidiary		269	471	613	2,165
VIE, consolidated | Consumer Loan SPVs
Noncontrolling Interest [Line Items]
Total consolidated equity		82,007		82,007			91,263
Others’ interest in equity of consolidated subsidiary		38,234		38,234			$ 42,437
Net income (loss)		6,806	15,000	16,582	53,340
Others’ interest in net income (loss) of consolidated subsidiary		$ 3,165	$ 6,975	$ 7,711	$ 24,803

[1] The Company's Consolidated Balance Sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations and liabilities of the VIE for which creditors do not have recourse to the primary beneficiary (Rithm Capital). As of September 30, 2023 and December 31, 2022, total assets of consolidated VIEs were $2.2 billion and $2.3 billion, respectively, and total liabilities of consolidated VIEs were $1.8 billion and $1.8 billion, respectively. See Note 20 for further details.