SEGMENT REPORTING - Segment Financial Information (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
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		$ 442,644	$ 453,163	$ 1,378,045	$ 1,379,041
Realization of cash flows				(384,094)
Change in fair value of MSRs and MSR financing receivables		20,934	(19,174)	(99,338)	890,281
Servicing revenue, net		463,578	433,989	1,278,707	2,269,322
Interest income		476,607	273,379	1,222,007	710,440
Gain on originated residential mortgage loans, held-for-sale, net		149,230	203,479	410,320	980,266
Total revenues		1,089,415	910,847	2,911,034	3,960,028
Interest expense		382,554	218,089	1,020,780	507,751
G&A and other		376,624	505,608	1,103,773	2,155,568
Total operating expenses		759,178	723,697	2,124,553	2,663,319
Realized and unrealized gains (losses) on investments, net		(127,508)	(34,118)	(113,732)	(256,656)
Other income (loss), net		71,047	23,242	117,385	134,962
Total other income (loss)		(56,461)	(10,876)	3,653	(121,694)
Income (loss) before income taxes		273,776	176,274	790,134	1,175,015
Income tax expense (benefit)		52,585	22,084	92,309	297,563
Net income (loss)		221,191	154,190	697,825	877,452
Noncontrolling interests in income (loss) of consolidated subsidiaries		4,848	7,307	10,437	27,098
Dividends on preferred stock		22,394	22,427	67,184	67,315
Net Income (Loss) Attributable to Common Stockholders - basic		193,949	124,456	620,204	783,039
Investments		26,642,155		26,642,155
Cash and cash equivalents		1,217,283		1,217,283
Restricted cash		368,447		368,447
Other assets		6,432,444		6,432,444
Goodwill		85,199		85,199			$ 85,199
Total assets		34,745,528		34,745,528			32,479,336
Debt		24,116,609		24,116,609
Other liabilities		3,360,956		3,360,956
Total liabilities		27,477,565		27,477,565			25,469,268
Total 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
Noncontrolling interests in equity of consolidated subsidiaries	[1]	59,907		59,907			67,067
Total Rithm Capital stockholders’ equity		7,208,056		7,208,056			6,943,001
Investments in equity method investees		99,352		99,352
MSRs
Segment Reporting Information [Line Items]
Realization of cash flows		(138,993)	(141,616)	(384,094)	(522,206)
Servicing revenue, net		463,578	433,989	1,278,707	2,269,322
Origination
Segment Reporting Information [Line Items]
Goodwill		11,836		11,836			11,836
Servicing
Segment Reporting Information [Line Items]
Goodwill		12,540		12,540			12,540
MSR Related Investments
Segment Reporting Information [Line Items]
Goodwill		5,092		5,092			$ 5,092
Operating Segments | Origination
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		29,140	41,862	81,225	143,449
Gain on originated residential mortgage loans, held-for-sale, net		126,844	214,703	373,796	924,582
Total revenues		155,984	256,565	455,021	1,068,031
Interest expense		30,725	31,345	89,333	88,358
G&A and other		137,831	283,798	421,407	1,041,988
Total operating expenses		168,556	315,143	510,740	1,130,346
Realized and unrealized gains (losses) on investments, net		22	0	78	0
Other income (loss), net		74	1,368	(261)	5,295
Total other income (loss)		96	1,368	(183)	5,295
Income (loss) before income taxes		(12,476)	(57,210)	(55,902)	(57,020)
Income tax expense (benefit)		(3,125)	(14,243)	(14,003)	(14,086)
Net income (loss)		(9,351)	(42,967)	(41,899)	(42,934)
Noncontrolling interests in income (loss) of consolidated subsidiaries		269	471	613	2,165
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		(9,620)	(43,438)	(42,512)	(45,099)
Investments		1,545,881		1,545,881
Cash and cash equivalents		211,544		211,544
Restricted cash		25,967		25,967
Other assets		135,339		135,339
Goodwill		11,836		11,836
Total assets		1,930,567		1,930,567
Debt		1,467,620		1,467,620
Other liabilities		171,398		171,398
Total liabilities		1,639,018		1,639,018
Total equity		291,549		291,549
Noncontrolling interests in equity of consolidated subsidiaries		9,073		9,073
Total Rithm Capital stockholders’ equity		282,476		282,476
Investments in equity method investees		0		0
Operating Segments | Servicing
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		372,979	338,742	1,082,257	1,010,252
Realization of cash flows		(115,941)	(90,750)	(290,990)	(341,706)
Change in fair value of MSRs and MSR financing receivables		95,507	39,853	103,748	881,183
Servicing revenue, net		468,486	378,595	1,186,005	1,891,435
Interest income		127,467	55,844	314,387	83,954
Gain on originated residential mortgage loans, held-for-sale, net		17,295	5,980	22,882	83,481
Total revenues		613,248	440,419	1,523,274	2,058,870
Interest expense		83,845	56,650	246,525	131,452
G&A and other		103,728	112,731	298,636	321,360
Total operating expenses		187,573	169,381	545,161	452,812
Realized and unrealized gains (losses) on investments, net		0	(1)	195	(1,812)
Other income (loss), net		(700)	(4,074)	(18,971)	2,061
Total other income (loss)		(700)	(4,075)	(18,776)	249
Income (loss) before income taxes		424,975	266,963	959,337	1,606,307
Income tax expense (benefit)		59,474	51,032	115,887	363,187
Net income (loss)		365,501	215,931	843,450	1,243,120
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0	0
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		365,501	215,931	843,450	1,243,120
Investments		7,823,376		7,823,376
Cash and cash equivalents		417,092		417,092
Restricted cash		139,829		139,829
Other assets		2,714,592		2,714,592
Goodwill		12,540		12,540
Total assets		11,107,429		11,107,429
Debt		4,498,335		4,498,335
Other liabilities		2,374,139		2,374,139
Total liabilities		6,872,474		6,872,474
Total equity		4,234,955		4,234,955
Noncontrolling interests in equity of consolidated subsidiaries		0		0
Total Rithm Capital stockholders’ equity		4,234,955		4,234,955
Investments in equity method investees		0		0
Operating Segments | MSR Related Investments
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		69,665	114,421	295,788	368,789
Change in fair value of MSRs and MSR financing receivables		(74,573)	(59,027)	(203,086)	9,098
Servicing revenue, net		(4,908)	55,394	92,702	377,887
Interest income		35,339	15,401	95,520	42,443
Gain on originated residential mortgage loans, held-for-sale, net		0	0	0	0
Total revenues		30,431	70,795	188,222	420,330
Interest expense		33,907	26,033	95,977	78,186
G&A and other		66,275	62,817	210,811	210,774
Total operating expenses		100,182	88,850	306,788	288,960
Realized and unrealized gains (losses) on investments, net		10,453	(8,717)	8,366	(12,062)
Other income (loss), net		37,412	4,923	107,761	45,099
Total other income (loss)		47,865	(3,794)	116,127	33,037
Income (loss) before income taxes		(21,886)	(21,849)	(2,439)	164,407
Income tax expense (benefit)		1,946	(7,197)	(2,117)	33,766
Net income (loss)		(23,832)	(14,652)	(322)	130,641
Noncontrolling interests in income (loss) of consolidated subsidiaries		1,414	(139)	2,113	130
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		(25,246)	(14,513)	(2,435)	130,511
Investments		1,114,249		1,114,249
Cash and cash equivalents		233,556		233,556
Restricted cash		119,150		119,150
Other assets		2,323,689		2,323,689
Goodwill		5,092		5,092
Total assets		3,795,736		3,795,736
Debt		2,443,876		2,443,876
Other liabilities		33,624		33,624
Total liabilities		2,477,500		2,477,500
Total equity		1,318,236		1,318,236
Noncontrolling interests in equity of consolidated subsidiaries		12,600		12,600
Total Rithm Capital stockholders’ equity		1,305,636		1,305,636
Investments in equity method investees		65,212		65,212
Operating Segments | Origination and Servicing
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		442,644	453,163	1,378,045	1,379,041
Change in fair value of MSRs and MSR financing receivables		20,934	(19,174)	(99,338)	890,281
Servicing revenue, net		463,578	433,989	1,278,707	2,269,322
Interest income		191,946	113,107	491,132	269,846
Gain on originated residential mortgage loans, held-for-sale, net		144,139	220,683	396,678	1,010,568
Total revenues		799,663	767,779	2,166,517	3,549,736
Interest expense		148,477	114,028	431,835	297,996
G&A and other		307,834	459,346	930,854	1,574,122
Total operating expenses		456,311	573,374	1,362,689	1,872,118
Realized and unrealized gains (losses) on investments, net		10,475	(8,718)	8,639	(13,874)
Other income (loss), net		36,786	2,217	88,529	52,455
Total other income (loss)		47,261	(6,501)	97,168	38,581
Income (loss) before income taxes		390,613	187,904	900,996	1,716,199
Income tax expense (benefit)		58,295	29,592	99,767	382,867
Net income (loss)		332,318	158,312	801,229	1,333,332
Noncontrolling interests in income (loss) of consolidated subsidiaries		1,683	332	2,726	2,295
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		330,635	157,980	798,503	1,331,037
Investments		10,483,506		10,483,506
Cash and cash equivalents		862,192		862,192
Restricted cash		284,946		284,946
Other assets		5,173,620		5,173,620
Goodwill		29,468		29,468
Total assets		16,833,732		16,833,732
Debt		8,409,831		8,409,831
Other liabilities		2,579,161		2,579,161
Total liabilities		10,988,992		10,988,992
Total equity		5,844,740		5,844,740
Noncontrolling interests in equity of consolidated subsidiaries		21,673		21,673
Total Rithm Capital stockholders’ equity		5,823,067		5,823,067
Investments in equity method investees		65,212		65,212
Operating Segments | Residential Securities, Properties and Loans | Real Estate Securities
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		140,119	76,908	376,842	187,841
Gain on originated residential mortgage loans, held-for-sale, net		0	0	1,247	0
Total revenues		140,119	76,908	378,089	187,841
Interest expense		136,180	51,822	350,044	81,067
G&A and other		1,009	921	3,199	2,403
Total operating expenses		137,189	52,743	353,243	83,470
Realized and unrealized gains (losses) on investments, net		(127,458)	(130,456)	(96,015)	(331,019)
Other income (loss), net		(2,644)	(2,799)	(4,514)	(7,526)
Total other income (loss)		(130,102)	(133,255)	(100,529)	(338,545)
Income (loss) before income taxes		(127,172)	(109,090)	(75,683)	(234,174)
Income tax expense (benefit)		0	0	0	0
Net income (loss)		(127,172)	(109,090)	(75,683)	(234,174)
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0	0
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		(127,172)	(109,090)	(75,683)	(234,174)
Investments		10,193,596		10,193,596
Cash and cash equivalents		328,794		328,794
Restricted cash		3,543		3,543
Other assets		830,971		830,971
Goodwill		0		0
Total assets		11,356,904		11,356,904
Debt		10,227,701		10,227,701
Other liabilities		148,823		148,823
Total liabilities		10,376,524		10,376,524
Total equity		980,380		980,380
Noncontrolling interests in equity of consolidated subsidiaries		0		0
Total Rithm Capital stockholders’ equity		980,380		980,380
Investments in equity method investees		0		0
Operating Segments | Residential Securities, Properties and Loans | Properties and Residential Mortgage Loans
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		23,993	19,186	73,050	68,815
Gain on originated residential mortgage loans, held-for-sale, net		5,091	(17,204)	12,395	(30,302)
Total revenues		29,084	1,982	85,445	38,513
Interest expense		30,753	21,242	87,775	53,442
G&A and other		13,531	12,220	36,303	47,545
Total operating expenses		44,284	33,462	124,078	100,987
Realized and unrealized gains (losses) on investments, net		(7,865)	81,829	(22,228)	100,594
Other income (loss), net		40,330	11,448	82,509	55,235
Total other income (loss)		32,465	93,277	60,281	155,829
Income (loss) before income taxes		17,265	61,797	21,648	93,355
Income tax expense (benefit)		(4,656)	(5,564)	(3,436)	(4,387)
Net income (loss)		21,921	67,361	25,084	97,742
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0	0
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		21,921	67,361	25,084	97,742
Investments		2,393,549		2,393,549
Cash and cash equivalents		2,315		2,315
Restricted cash		14,501		14,501
Other assets		115,413		115,413
Goodwill		0		0
Total assets		2,525,778		2,525,778
Debt		1,943,551		1,943,551
Other liabilities		403,021		403,021
Total liabilities		2,346,572		2,346,572
Total equity		179,206		179,206
Noncontrolling interests in equity of consolidated subsidiaries		0		0
Total Rithm Capital stockholders’ equity		179,206		179,206
Investments in equity method investees		0		0
Operating Segments | Consumer Loans
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		58,946	16,456	97,634	53,498
Gain on originated residential mortgage loans, held-for-sale, net		0	0	0	0
Total revenues		58,946	16,456	97,634	53,498
Interest expense		26,285	1,925	32,280	6,275
G&A and other		4,542	1,991	9,042	6,405
Total operating expenses		30,827	3,916	41,322	12,680
Realized and unrealized gains (losses) on investments, net		(4,111)	(5,845)	(14,095)	(26,774)
Other income (loss), net		(2,410)	8,701	(5,736)	33,198
Total other income (loss)		(6,521)	2,856	(19,831)	6,424
Income (loss) before income taxes		21,598	15,396	36,481	47,242
Income tax expense (benefit)		62	(4)	169	34
Net income (loss)		21,536	15,400	36,312	47,208
Noncontrolling interests in income (loss) of consolidated subsidiaries		3,165	6,975	7,711	24,803
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		18,371	8,425	28,601	22,405
Investments		1,436,080		1,436,080
Cash and cash equivalents		533		533
Restricted cash		19,703		19,703
Other assets		94,540		94,540
Goodwill		0		0
Total assets		1,550,856		1,550,856
Debt		1,269,768		1,269,768
Other liabilities		9,092		9,092
Total liabilities		1,278,860		1,278,860
Total equity		271,996		271,996
Noncontrolling interests in equity of consolidated subsidiaries		38,234		38,234
Total Rithm Capital stockholders’ equity		233,762		233,762
Investments in equity method investees		0		0
Operating Segments | Mortgage Loans Receivable
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		59,461	42,335	176,607	113,360
Gain on originated residential mortgage loans, held-for-sale, net		0	0	0	0
Total revenues		59,461	42,335	176,607	113,360
Interest expense		31,751	18,888	91,725	38,537
G&A and other		15,524	15,241	46,550	46,249
Total operating expenses		47,275	34,129	138,275	84,786
Realized and unrealized gains (losses) on investments, net		1,451	29,072	9,967	14,417
Other income (loss), net		5,369	5,710	6,260	13,140
Total other income (loss)		6,820	34,782	16,227	27,557
Income (loss) before income taxes		19,006	42,988	54,559	56,131
Income tax expense (benefit)		(1,116)	(1,940)	(4,191)	(5,563)
Net income (loss)		20,122	44,928	58,750	61,694
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0	0
Dividends on preferred stock		0	0	0	0
Net Income (Loss) Attributable to Common Stockholders - basic		20,122	44,928	58,750	61,694
Investments		2,135,424		2,135,424
Cash and cash equivalents		19,411		19,411
Restricted cash		45,754		45,754
Other assets		99,095		99,095
Goodwill		55,731		55,731
Total assets		2,355,415		2,355,415
Debt		1,719,384		1,719,384
Other liabilities		25,532		25,532
Total liabilities		1,744,916		1,744,916
Total equity		610,499		610,499
Noncontrolling interests in equity of consolidated subsidiaries		0		0
Total Rithm Capital stockholders’ equity		610,499		610,499
Investments in equity method investees		0		0
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0	0	0
Change in fair value of MSRs and MSR financing receivables		0	0	0	0
Servicing revenue, net		0	0	0	0
Interest income		2,142	5,387	6,742	17,080
Gain on originated residential mortgage loans, held-for-sale, net		0	0	0	0
Total revenues		2,142	5,387	6,742	17,080
Interest expense		9,108	10,184	27,121	30,434
G&A and other		34,184	15,889	77,825	478,844
Total operating expenses		43,292	26,073	104,946	509,278
Realized and unrealized gains (losses) on investments, net		0	0	0	0
Other income (loss), net		(6,384)	(2,035)	(49,663)	(11,540)
Total other income (loss)		(6,384)	(2,035)	(49,663)	(11,540)
Income (loss) before income taxes		(47,534)	(22,721)	(147,867)	(503,738)
Income tax expense (benefit)		0	0	0	(75,388)
Net income (loss)		(47,534)	(22,721)	(147,867)	(428,350)
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0	0
Dividends on preferred stock		22,394	22,427	67,184	67,315
Net Income (Loss) Attributable to Common Stockholders - basic		(69,928)	$ (45,148)	(215,051)	(495,665)
Investments		0		0
Cash and cash equivalents		4,038		4,038
Restricted cash		0		0
Other assets		118,805		118,805
Goodwill		0		0
Total assets		122,843		122,843
Debt		546,374		546,374
Other liabilities		195,327		195,327
Total liabilities		741,701		741,701
Total equity		(618,858)		(618,858)
Noncontrolling interests in equity of consolidated subsidiaries		0		0
Total Rithm Capital stockholders’ equity		(618,858)		(618,858)
Investments in equity method investees		$ 34,140		$ 34,140
Eliminations | Origination and Servicing
Segment Reporting Information [Line Items]
Gain on originated residential mortgage loans, held-for-sale, net					$ (2,500)

[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.