SEGMENT REPORTING - Segment Financial Information (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		$ 3,715,496	$ 4,952,416	$ 3,785,076
Total revenues		3,798,177	4,952,416	3,785,076
Interest expense		1,421,254	791,001	497,308
G&A and other		1,517,844	2,553,048	2,119,764
Total operating expenses		2,939,098	3,344,049	2,617,072
Realized and unrealized gains (losses), net		(37,236)	(200,181)	(207,437)
Other income (loss), net		(69,010)	(145,385)	3,241
Total other income (loss)		(106,246)	(345,566)	(204,196)
Income (loss) before income taxes		752,833	1,262,801	963,808
Income tax (benefit) expense		122,159	279,516	158,226
Net income (loss)		630,674	983,285	805,582
Noncontrolling interests in income (loss) of consolidated subsidiaries		8,417	28,766	33,356
Dividends on preferred stock		89,579	89,726	66,744
Net income (loss) attributable to common stockholders - basic		532,678	864,793	705,482
Investments		25,616,787	24,428,594
Cash and cash equivalents		1,287,199	1,336,508
Restricted cash		385,620	281,126
Other assets		7,890,322	6,347,909
Goodwill (Note 16)		131,857	85,199	85,199
Total assets		35,311,785	32,479,336
Debt		23,959,473	21,901,735
Other liabilities		4,251,274	3,567,533
Total liabilities		28,210,747	25,469,268
Total equity		7,101,038	7,010,068	6,669,380	$ 5,429,684
Noncontrolling interests in equity of consolidated subsidiaries	[1]	94,096	67,067
Total Rithm Capital stockholders’ equity		7,006,942	6,943,001
Investments in equity method investees		202,446	96,210
Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		1,860,255	1,831,964	1,559,554
Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		(565,684)	727,334	(577,763)
Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		1,294,571	2,559,298	981,791
Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		1,676,324	1,075,981	810,896
Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		508,434	1,086,232	1,826,909
Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		236,167	230,905	165,480
Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		82,681	0	0
Mortgage Servicing Rights
Segment Reporting Information [Line Items]
Realization of cash flows		(518,978)	(631,120)	(1,192,646)
Origination and servicing
Segment Reporting Information [Line Items]
Goodwill (Note 16)		24,376	24,376	24,376
Investment Portfolio
Segment Reporting Information [Line Items]
Goodwill (Note 16)		5,092	5,092	5,092
Asset Management
Segment Reporting Information [Line Items]
Goodwill (Note 16)		46,658	0	0
Operating Segments | Origination and servicing
Segment Reporting Information [Line Items]
Total revenues		2,208,351	3,532,744	2,659,512
Interest expense		460,780	325,056	219,088
G&A and other		944,112	1,638,989	1,534,266
Total operating expenses		1,404,892	1,964,045	1,753,354
Realized and unrealized gains (losses), net		273	(1,812)	(12,162)
Other income (loss), net		(19,950)	6,270	(10,484)
Total other income (loss)		(19,677)	4,458	(22,646)
Income (loss) before income taxes		783,782	1,573,157	883,512
Income tax (benefit) expense		107,617	327,318	133,117
Net income (loss)		676,165	1,245,839	750,395
Noncontrolling interests in income (loss) of consolidated subsidiaries		581	2,716	11,298
Dividends on preferred stock		0	0	0
Net income (loss) attributable to common stockholders - basic		675,584	1,243,123	739,097
Investments		9,413,923	9,371,435
Cash and cash equivalents		548,666	604,191
Restricted cash		195,490	161,249
Other assets		3,489,171	2,428,832
Goodwill (Note 16)		24,376	24,376
Total assets		13,671,626	12,590,083
Debt		6,920,310	6,660,484
Other liabilities		3,224,989	2,295,684
Total liabilities		10,145,299	8,956,168
Total equity		3,526,327	3,633,915
Noncontrolling interests in equity of consolidated subsidiaries		8,220	12,437
Total Rithm Capital stockholders’ equity		3,518,107	3,621,478
Investments in equity method investees		0	0
Operating Segments | Origination and servicing | Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		1,488,911	1,348,984	950,962
Operating Segments | Origination and servicing | Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		(310,444)	729,844	(306,259)
Operating Segments | Origination and servicing | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		1,178,467	2,078,828	644,703
Operating Segments | Origination and servicing | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		533,944	326,634	208,682
Operating Segments | Origination and servicing | Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		495,940	1,127,282	1,806,127
Operating Segments | Origination and servicing | Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Origination and servicing | Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		0	0	0
Operating Segments | Investment Portfolio
Segment Reporting Information [Line Items]
Total revenues		1,261,426	1,252,915	1,121,345
Interest expense		795,727	365,211	241,068
G&A and other		333,293	352,407	464,201
Total operating expenses		1,129,020	717,618	705,269
Realized and unrealized gains (losses), net		(30,843)	(226,870)	(195,104)
Other income (loss), net		(29,465)	(144,728)	12,687
Total other income (loss)		(60,308)	(371,598)	(182,417)
Income (loss) before income taxes		72,098	163,699	233,659
Income tax (benefit) expense		(7,457)	35,378	25,109
Net income (loss)		79,555	128,321	208,550
Noncontrolling interests in income (loss) of consolidated subsidiaries		7,471	26,050	22,058
Dividends on preferred stock		0	0	0
Net income (loss) attributable to common stockholders - basic		72,084	102,271	186,492
Investments		13,743,465	12,993,131
Cash and cash equivalents		442,015	666,810
Restricted cash		144,169	94,508
Other assets		3,083,967	3,720,905
Goodwill (Note 16)		5,092	5,092
Total assets		17,418,708	17,480,446
Debt		14,180,827	12,962,616
Other liabilities		223,266	1,086,248
Total liabilities		14,404,093	14,048,864
Total equity		3,014,615	3,431,582
Noncontrolling interests in equity of consolidated subsidiaries		44,905	54,630
Total Rithm Capital stockholders’ equity		2,969,710	3,376,952
Investments in equity method investees		110,883	96,210
Operating Segments | Investment Portfolio | Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		371,344	482,980	608,592
Operating Segments | Investment Portfolio | Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		(255,240)	(2,510)	(271,504)
Operating Segments | Investment Portfolio | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		116,104	480,470	337,088
Operating Segments | Investment Portfolio | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		896,661	582,590	597,995
Operating Segments | Investment Portfolio | Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		12,494	(41,050)	20,782
Operating Segments | Investment Portfolio | Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		236,167	230,905	165,480
Operating Segments | Investment Portfolio | Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		0	0	0
Operating Segments | Mortgage Loans Receivable
Segment Reporting Information [Line Items]
Total revenues		241,931	166,479	4,219
Interest expense		125,836	64,188	1,000
G&A and other		62,358	64,277	1,802
Total operating expenses		188,194	128,465	2,802
Realized and unrealized gains (losses), net		(14,726)	28,434	0
Other income (loss), net		6,209	12,243	0
Total other income (loss)		(8,517)	40,677	0
Income (loss) before income taxes		45,220	78,691	1,417
Income tax (benefit) expense		(5,122)	(7,792)	0
Net income (loss)		50,342	86,483	1,417
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0
Dividends on preferred stock		0	0	0
Net income (loss) attributable to common stockholders - basic		50,342	86,483	1,417
Investments		2,232,913	2,064,028
Cash and cash equivalents		58,628	52,441
Restricted cash		37,805	25,369
Other assets		113,055	170,129
Goodwill (Note 16)		55,731	55,731
Total assets		2,498,132	2,367,698
Debt		1,856,006	1,733,579
Other liabilities		23,979	25,818
Total liabilities		1,879,985	1,759,397
Total equity		618,147	608,301
Noncontrolling interests in equity of consolidated subsidiaries		0	0
Total Rithm Capital stockholders’ equity		618,147	608,301
Investments in equity method investees		0	0
Operating Segments | Mortgage Loans Receivable | Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Mortgage Loans Receivable | Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Mortgage Loans Receivable | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Mortgage Loans Receivable | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		241,931	166,479	4,219
Operating Segments | Mortgage Loans Receivable | Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Mortgage Loans Receivable | Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Mortgage Loans Receivable | Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		0	0	0
Operating Segments | Asset Management
Segment Reporting Information [Line Items]
Total revenues		86,469	0	0
Interest expense		2,727	0	0
G&A and other		63,870	0	0
Total operating expenses		66,597	0	0
Realized and unrealized gains (losses), net		8,060	0	0
Other income (loss), net		557	0	0
Total other income (loss)		8,617	0	0
Income (loss) before income taxes		28,489	0	0
Income tax (benefit) expense		27,121	0	0
Net income (loss)		1,368	0	0
Noncontrolling interests in income (loss) of consolidated subsidiaries		365	0	0
Dividends on preferred stock		0	0	0
Net income (loss) attributable to common stockholders - basic		1,003	0	0
Investments		226,486	0
Cash and cash equivalents		230,008	0
Restricted cash		8,156	0
Other assets		1,183,646	0
Goodwill (Note 16)		46,658	0
Total assets		1,694,954	0
Debt		455,512	0
Other liabilities		565,919	0
Total liabilities		1,021,431	0
Total equity		673,523	0
Noncontrolling interests in equity of consolidated subsidiaries		40,971	0
Total Rithm Capital stockholders’ equity		632,552	0
Investments in equity method investees		91,563	0
Operating Segments | Asset Management | Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Asset Management | Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Asset Management | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Asset Management | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		3,788	0	0
Operating Segments | Asset Management | Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Asset Management | Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Asset Management | Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		82,681	0	0
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Total revenues		0	278	0
Interest expense		36,184	36,546	36,152
G&A and other		114,211	497,375	119,495
Total operating expenses		150,395	533,921	155,647
Realized and unrealized gains (losses), net		0	67	(171)
Other income (loss), net		(26,361)	(19,170)	1,038
Total other income (loss)		(26,361)	(19,103)	867
Income (loss) before income taxes		(176,756)	(552,746)	(154,780)
Income tax (benefit) expense		0	(75,388)	0
Net income (loss)		(176,756)	(477,358)	(154,780)
Noncontrolling interests in income (loss) of consolidated subsidiaries		0	0	0
Dividends on preferred stock		89,579	89,726	66,744
Net income (loss) attributable to common stockholders - basic		(266,335)	(567,084)	(221,524)
Investments		0	0
Cash and cash equivalents		7,882	13,066
Restricted cash		0	0
Other assets		20,483	28,043
Goodwill (Note 16)		0	0
Total assets		28,365	41,109
Debt		546,818	545,056
Other liabilities		213,121	159,783
Total liabilities		759,939	704,839
Total equity		(731,574)	(663,730)
Noncontrolling interests in equity of consolidated subsidiaries		0	0
Total Rithm Capital stockholders’ equity		(731,574)	(663,730)
Investments in equity method investees		0	0
Operating Segments | Corporate | Servicing fee revenue, net and interest income from MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Corporate | Change in fair value of MSRs and MSR financing receivables
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Corporate | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Corporate | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	278	0
Operating Segments | Corporate | Gain on originated residential mortgage loans, held-for-sale, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Corporate | Other investment portfolio revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues		0	0	0
Operating Segments | Corporate | Asset management revenues
Segment Reporting Information [Line Items]
Total revenues		$ 0	$ 0	$ 0
Subsidiaries
Segment Reporting Information [Line Items]
Number of reportable segments | segment		1

[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 December 31, 2023, and December 31, 2022, total assets of consolidated VIEs were $2.5 billion and $2.3 billion, respectively, and total liabilities of consolidated VIEs were $2.1 billion and $1.8 billion, respectively. See Note 21 for further details.