REAL ESTATE AND OTHER SECURITIES - Summary of Real Estate Securities in an Unrealized Loss Position - Associated Intent to Sell (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities Rithm Capital intends to sell
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 0	$ 0
Amortized Cost Basis After Credit Impairment	0	0
Gross Unrealized Losses, Credit	0	0
Gross Unrealized Losses, Non-Credit	0	0
Securities Rithm Capital is more likely than not to be required to sell
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	0
Amortized Cost Basis After Credit Impairment	0	0
Gross Unrealized Losses, Credit	0	0
Gross Unrealized Losses, Non-Credit	0	0
Credit impaired securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	77,843	6,581
Amortized Cost Basis After Credit Impairment	78,101	6,581
Gross Unrealized Losses, Credit	(10,816)	(3,471)
Gross Unrealized Losses, Non-Credit	(258)	0
Non-credit impaired securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	271,405	3,927
Amortized Cost Basis After Credit Impairment	304,831	4,044
Gross Unrealized Losses, Credit	0	0
Gross Unrealized Losses, Non-Credit	(33,426)	(117)
Total debt securities in an unrealized loss position
Debt Securities, Available-for-sale [Line Items]
Fair Value	349,248	10,508
Amortized Cost Basis After Credit Impairment	382,932	10,625
Gross Unrealized Losses, Credit	(10,816)	(3,471)
Gross Unrealized Losses, Non-Credit	$ (33,684)	$ (117)