SEGMENT REPORTING - Segment Financial Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		$ 469,839	$ 456,400
Realization of cash flows		(105,691)
Change in fair value of MSRs and MSR financing receivable		(142,304)	575,393
Servicing revenue, net		327,535	1,031,793
Interest income		346,614	225,413
Gain on originated residential mortgage loans, held-for-sale, net		109,268	471,996
Total revenues		783,417	1,729,202
Interest expense		309,068	138,833
G&A and other		356,035	664,046
Total operating expenses		665,103	802,879
Realized and unrealized gains (losses) on investments, net		(75,649)	(85,935)
Other income (loss), net		30,478	52,332
Total other income (loss)		(45,171)	(33,603)
Income (loss) before income taxes		73,143	892,720
Income tax expense (benefit)		(16,806)	202,789
Net income (loss)		89,949	689,931
Noncontrolling interests in income (loss) of consolidated subsidiaries		(1,300)	5,609
Dividends on preferred stock		22,395	22,461
Net Income Attributable to Common Stockholders - basic		68,854	661,861
Investments		24,397,294
Cash and cash equivalents		1,434,697
Restricted cash		365,649
Other assets		5,535,812
Goodwill		85,199		$ 85,199
Total assets		31,818,651		32,479,336
Debt		22,035,025
Other liabilities		2,829,083
Total liabilities		24,864,108		25,469,268
Total equity		6,954,543	7,184,712	7,010,068	$ 6,669,380
Noncontrolling interests in equity of consolidated subsidiaries	[1]	60,337		67,067
Total Rithm Capital stockholders’ equity		6,894,206		6,943,001
Investments in equity method investees		67,955
MSRs
Segment Reporting Information [Line Items]
Realization of cash flows		(105,691)	(200,325)
Servicing revenue, net		327,535	1,031,793
Origination
Segment Reporting Information [Line Items]
Investments		1,420,850
Cash and cash equivalents		262,712
Restricted cash		96,823
Other assets		163,392
Goodwill		11,836		11,836
Total assets		1,955,613
Debt		1,403,564
Other liabilities		209,659
Total liabilities		1,613,223
Total equity		342,390
Noncontrolling interests in equity of consolidated subsidiaries		11,986
Total Rithm Capital stockholders’ equity		330,404
Investments in equity method investees		0
Servicing
Segment Reporting Information [Line Items]
Realization of cash flows		(72,015)	(133,276)
Servicing revenue, net		311,898	823,713
Investments		7,273,627
Cash and cash equivalents		432,850
Restricted cash		145,268
Other assets		2,297,604
Goodwill		12,540		12,540
Total assets		10,161,889
Debt		4,820,673
Other liabilities		2,077,965
Total liabilities		6,898,638
Total equity		3,263,251
Noncontrolling interests in equity of consolidated subsidiaries		0
Total Rithm Capital stockholders’ equity		3,263,251
Investments in equity method investees		0
MSR Related Investments
Segment Reporting Information [Line Items]
Investments		1,985,193
Cash and cash equivalents		326,860
Restricted cash		72,192
Other assets		2,640,824
Goodwill		5,092		$ 5,092
Total assets		5,030,161
Debt		2,954,585
Other liabilities		40,124
Total liabilities		2,994,709
Total equity		2,035,452
Noncontrolling interests in equity of consolidated subsidiaries		11,304
Total Rithm Capital stockholders’ equity		2,024,148
Investments in equity method investees		67,955
Origination and Servicing
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		469,839	456,400
Change in fair value of MSRs and MSR financing receivable		(142,304)	575,393
Servicing revenue, net		327,535	1,031,793
Interest income		134,325	82,426
Gain on originated residential mortgage loans, held-for-sale, net		108,221	471,430
Total revenues		570,081	1,585,649
Interest expense		142,771	89,506
G&A and other		310,587	589,548
Total operating expenses		453,358	679,054
Realized and unrealized gains (losses) on investments, net		(12,421)	(3,955)
Other income (loss), net		22,494	31,919
Total other income (loss)		10,073	27,964
Income (loss) before income taxes		126,796	934,559
Income tax expense (benefit)		(11,043)	199,095
Net income (loss)		137,839	735,464
Noncontrolling interests in income (loss) of consolidated subsidiaries		(188)	635
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		138,027	734,829
Investments		10,679,670
Cash and cash equivalents		1,022,422
Restricted cash		314,283
Other assets		5,101,820
Goodwill		29,468
Total assets		17,147,663
Debt		9,178,822
Other liabilities		2,327,748
Total liabilities		11,506,570
Total equity		5,641,093
Noncontrolling interests in equity of consolidated subsidiaries		23,290
Total Rithm Capital stockholders’ equity		5,617,803
Investments in equity method investees		67,955
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
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		114,247	56,349
Gain on originated residential mortgage loans, held-for-sale, net		0	0
Total revenues		114,247	56,349
Interest expense		98,292	9,029
G&A and other		630	772
Total operating expenses		98,922	9,801
Realized and unrealized gains (losses) on investments, net		(45,999)	(76,529)
Other income (loss), net		165	(2,600)
Total other income (loss)		(45,834)	(79,129)
Income (loss) before income taxes		(30,509)	(32,581)
Income tax expense (benefit)		0	0
Net income (loss)		(30,509)	(32,581)
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		(30,509)	(32,581)
Investments		8,987,572
Cash and cash equivalents		352,280
Restricted cash		4,427
Other assets		93,298
Goodwill		0
Total assets		9,437,577
Debt		8,343,730
Other liabilities		54,436
Total liabilities		8,398,166
Total equity		1,039,411
Noncontrolling interests in equity of consolidated subsidiaries		0
Total Rithm Capital stockholders’ equity		1,039,411
Investments in equity method investees		0
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
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		22,766	26,989
Gain on originated residential mortgage loans, held-for-sale, net		1,047	566
Total revenues		23,813	27,555
Interest expense		26,192	20,868
G&A and other		9,383	23,434
Total operating expenses		35,575	44,302
Realized and unrealized gains (losses) on investments, net		(6,427)	12,164
Other income (loss), net		24,181	14,316
Total other income (loss)		17,754	26,480
Income (loss) before income taxes		5,992	9,733
Income tax expense (benefit)		(3,728)	3,657
Net income (loss)		9,720	6,076
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		9,720	6,076
Investments		2,443,105
Cash and cash equivalents		570
Restricted cash		6,923
Other assets		79,537
Goodwill		0
Total assets		2,530,135
Debt		2,025,068
Other liabilities		262,554
Total liabilities		2,287,622
Total equity		242,513
Noncontrolling interests in equity of consolidated subsidiaries		0
Total Rithm Capital stockholders’ equity		242,513
Investments in equity method investees		0
Consumer Loans
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		14,287	18,933
Gain on originated residential mortgage loans, held-for-sale, net		0	0
Total revenues		14,287	18,933
Interest expense		1,680	2,262
G&A and other		1,766	2,254
Total operating expenses		3,446	4,516
Realized and unrealized gains (losses) on investments, net		(5,990)	(13,733)
Other income (loss), net		(8,722)	8,772
Total other income (loss)		(14,712)	(4,961)
Income (loss) before income taxes		(3,871)	9,456
Income tax expense (benefit)		59	37
Net income (loss)		(3,930)	9,419
Noncontrolling interests in income (loss) of consolidated subsidiaries		(1,112)	4,974
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		(2,818)	4,445
Investments		340,525
Cash and cash equivalents		1,219
Restricted cash		16,759
Other assets		25,790
Goodwill		0
Total assets		384,293
Debt		286,653
Other liabilities		1,255
Total liabilities		287,908
Total equity		96,385
Noncontrolling interests in equity of consolidated subsidiaries		37,047
Total Rithm Capital stockholders’ equity		59,338
Investments in equity method investees		0
Mortgage Loans Receivable
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		58,337	34,277
Gain on originated residential mortgage loans, held-for-sale, net		0	0
Total revenues		58,337	34,277
Interest expense		30,692	6,969
G&A and other		16,231	16,408
Total operating expenses		46,923	23,377
Realized and unrealized gains (losses) on investments, net		(4,812)	(3,882)
Other income (loss), net		1,713	0
Total other income (loss)		(3,099)	(3,882)
Income (loss) before income taxes		8,315	7,018
Income tax expense (benefit)		(2,094)	0
Net income (loss)		10,409	7,018
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		10,409	7,018
Investments		1,946,422
Cash and cash equivalents		37,512
Restricted cash		23,257
Other assets		117,598
Goodwill		55,731
Total assets		2,180,520
Debt		1,655,262
Other liabilities		17,748
Total liabilities		1,673,010
Total equity		507,510
Noncontrolling interests in equity of consolidated subsidiaries		0
Total Rithm Capital stockholders’ equity		507,510
Investments in equity method investees		0
Corporate
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		2,652	6,439
Gain on originated residential mortgage loans, held-for-sale, net		0	0
Total revenues		2,652	6,439
Interest expense		9,441	10,199
G&A and other		17,438	31,630
Total operating expenses		26,879	41,829
Realized and unrealized gains (losses) on investments, net		0	0
Other income (loss), net		(9,353)	(75)
Total other income (loss)		(9,353)	(75)
Income (loss) before income taxes		(33,580)	(35,465)
Income tax expense (benefit)		0	0
Net income (loss)		(33,580)	(35,465)
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0
Dividends on preferred stock		22,395	22,461
Net Income Attributable to Common Stockholders - basic		(55,975)	(57,926)
Investments		0
Cash and cash equivalents		20,694
Restricted cash		0
Other assets		117,769
Goodwill		0
Total assets		138,463
Debt		545,490
Other liabilities		165,342
Total liabilities		710,832
Total equity		(572,369)
Noncontrolling interests in equity of consolidated subsidiaries		0
Total Rithm Capital stockholders’ equity		(572,369)
Investments in equity method investees		0
Operating Segments | Origination
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		0	0
Change in fair value of MSRs and MSR financing receivable		0	0
Servicing revenue, net		0	0
Interest income		25,533	55,371
Gain on originated residential mortgage loans, held-for-sale, net		112,822	407,269
Total revenues		138,355	462,640
Interest expense		29,995	29,435
G&A and other		140,512	408,758
Total operating expenses		170,507	438,193
Realized and unrealized gains (losses) on investments, net		168	0
Other income (loss), net		(590)	2,095
Total other income (loss)		(422)	2,095
Income (loss) before income taxes		(32,574)	26,542
Income tax expense (benefit)		(8,160)	6,516
Net income (loss)		(24,414)	20,026
Noncontrolling interests in income (loss) of consolidated subsidiaries		(42)	407
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		(24,372)	19,619
Operating Segments | Servicing
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		349,424	326,396
Change in fair value of MSRs and MSR financing receivable		(37,526)	497,317
Servicing revenue, net		311,898	823,713
Interest income		84,233	11,353
Gain on originated residential mortgage loans, held-for-sale, net		(4,601)	61,762
Total revenues		391,530	896,828
Interest expense		81,074	33,706
G&A and other		100,834	102,833
Total operating expenses		181,908	136,539
Realized and unrealized gains (losses) on investments, net		(191)	(347)
Other income (loss), net		(12,837)	943
Total other income (loss)		(13,028)	596
Income (loss) before income taxes		196,594	760,885
Income tax expense (benefit)		4,488	161,116
Net income (loss)		192,106	599,769
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		192,106	599,769
Operating Segments | MSR Related Investments
Segment Reporting Information [Line Items]
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables		120,415	130,004
Change in fair value of MSRs and MSR financing receivable		(104,778)	78,076
Servicing revenue, net		15,637	208,080
Interest income		24,559	15,702
Gain on originated residential mortgage loans, held-for-sale, net		0	0
Total revenues		40,196	223,782
Interest expense		31,702	26,365
G&A and other		69,241	77,957
Total operating expenses		100,943	104,322
Realized and unrealized gains (losses) on investments, net		(12,398)	(3,608)
Other income (loss), net		35,921	28,881
Total other income (loss)		23,523	25,273
Income (loss) before income taxes		(37,224)	144,733
Income tax expense (benefit)		(7,371)	31,463
Net income (loss)		(29,853)	113,270
Noncontrolling interests in income (loss) of consolidated subsidiaries		(146)	228
Dividends on preferred stock		0	0
Net Income Attributable to Common Stockholders - basic		$ (29,707)	113,042
Eliminations | Origination and Servicing
Segment Reporting Information [Line Items]
Gain on originated residential mortgage loans, held-for-sale, net			$ (2,400)

[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 March 31, 2023 and December 31, 2022, total assets of consolidated VIEs were $1.8 billion and $2.3 billion, respectively, and total liabilities of consolidated VIEs were $1.6 billion and $1.8 billion, respectively. See Note 20 for further details.