SEGMENT REPORTING - Segment Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total Revenues	$ 5,205,836	$ 3,762,187	$ 4,920,801
Interest expense and warehouse line fees	1,835,325	1,401,327	777,793
Other segment expenses	744,353	680,421	1,252,735
Compensation and benefits	1,134,768	787,092	1,231,446
Depreciation and amortization	124,131	80,681	89,501
Total Operating Expenses	3,838,577	2,949,521	3,351,475
Realized and unrealized gains (losses), net	(215,705)	(19,456)	(180,059)
Other income (loss), net	57,255	(40,377)	(126,466)
Total Other Loss, Net	(158,450)	(59,833)	(306,525)
Income before Income Taxes	1,208,809	752,833	1,262,801
Income tax expense	267,317	122,159	279,516
Net Income (Loss)	941,492	630,674	983,285
Noncontrolling interests in income (loss) of consolidated subsidiaries	9,989	8,417	28,766
Dividends on preferred stock	96,456	89,579	89,726
Net Income Attributable to Common Stockholders - basic	835,047	532,678	864,793
Investments	28,665,853	24,038,659	23,127,742
Cash and cash equivalents	1,458,743	1,287,199	1,336,508
Restricted cash	308,443	378,048	271,758
Other assets	10,374,260	10,129,844	6,962,163
Goodwill (Note 16)	133,832	131,857	85,199
Assets of consolidated CFEs	5,107,826	3,751,477	2,803,138
Total Assets	46,048,957	39,717,084	34,586,508
Debt	28,284,762	23,640,475	21,588,817
Other liabilities	5,529,641	5,811,937	3,567,184
Liabilities of consolidated CFEs	4,348,244	3,163,634	2,420,439
Total Liabilities	38,162,647	32,616,046	27,576,440
Total Equity	7,886,310	7,101,038	7,010,068	$ 6,669,380
Noncontrolling interests in equity of consolidated subsidiaries	91,336	94,096	67,067
Total Rithm Capital stockholders’ equity	7,794,974	7,006,942	6,943,001
Investments in Equity Method Investees	443,139	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	1,993,319	1,859,357	1,831,354
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	(167,574)	(565,684)	727,334
Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	1,825,745	1,293,673	2,558,688
Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	1,949,790	1,616,189	1,038,459
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	682,535	533,477	1,092,749
Other revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	227,472	236,167	230,905
Asset management revenues
Segment Reporting Information [Line Items]
Total Revenues	520,294	82,681	0
Mortgage Servicing Rights
Segment Reporting Information [Line Items]
Realization of cash flows	(602,241)	(518,978)	(631,120)
Origination and Servicing
Segment Reporting Information [Line Items]
Goodwill (Note 16)	29,468	29,468	29,468
Assets of consolidated CFEs	0
Residential Transitional Lending
Segment Reporting Information [Line Items]
Goodwill (Note 16)	55,731	55,731	55,731
Asset Management
Segment Reporting Information [Line Items]
Goodwill (Note 16)	48,633	46,658	0
Operating Segments | Origination and Servicing
Segment Reporting Information [Line Items]
Total Revenues	3,970,195	3,006,269	4,434,211
Interest expense and warehouse line fees	1,327,115	1,011,387	522,963
Other segment expenses	500,347	513,453	740,629
Compensation and benefits	706,805	655,819	1,172,089
Depreciation and amortization	56,496	44,174	59,458
Total Operating Expenses	2,590,763	2,224,833	2,495,139
Realized and unrealized gains (losses), net	(288,322)	(29,289)	(342,789)
Other income (loss), net	21,677	(20,125)	(5,664)
Total Other Loss, Net	(266,645)	(49,414)	(348,453)
Income before Income Taxes	1,112,787	732,022	1,590,619
Income tax expense	219,086	107,617	327,318
Net Income (Loss)	893,701	624,405	1,263,301
Noncontrolling interests in income (loss) of consolidated subsidiaries	2,554	581	2,716
Dividends on preferred stock	0	0	0
Net Income Attributable to Common Stockholders - basic	891,147	623,824	1,260,585
Investments	24,108,692	19,014,526	18,801,342
Cash and cash equivalents	1,004,326	548,666	604,191
Restricted cash	207,724	300,941	218,435
Other assets	7,068,046	5,210,015	4,970,130
Goodwill (Note 16)	29,468	29,468	29,468
Assets of consolidated CFEs		0	0
Total Assets	32,418,256	25,103,616	24,623,566
Debt	21,968,357	17,116,565	16,209,175
Other liabilities	4,725,155	3,391,408	3,095,524
Liabilities of consolidated CFEs	0	0	0
Total Liabilities	26,693,512	20,507,973	19,304,699
Total Equity	5,724,744	4,595,643	5,318,867
Noncontrolling interests in equity of consolidated subsidiaries	9,687	8,220	12,437
Total Rithm Capital stockholders’ equity	5,715,057	4,587,423	5,306,430
Investments in Equity Method Investees	24,488	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	1,993,319	1,859,357	1,831,354
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	(167,574)	(565,684)	727,334
Operating Segments | Origination and Servicing | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	1,825,745	1,293,673	2,558,688
Operating Segments | Origination and Servicing | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	1,351,066	1,084,479	615,809
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	672,093	494,693	1,127,282
Operating Segments | Origination and Servicing | Other revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	121,291	133,424	132,432
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	436,219	463,670	340,997
Interest expense and warehouse line fees	271,908	245,120	167,304
Other segment expenses	80,724	59,698	14,675
Compensation and benefits	3,809	8,681	1,786
Depreciation and amortization	30,748	25,930	23,393
Total Operating Expenses	387,189	339,429	207,158
Realized and unrealized gains (losses), net	18,671	273	126,273
Other income (loss), net	22,032	(657)	(113,875)
Total Other Loss, Net	40,703	(384)	12,398
Income before Income Taxes	89,733	123,857	146,237
Income tax expense	6,949	(7,457)	35,378
Net Income (Loss)	82,784	131,314	110,859
Noncontrolling interests in income (loss) of consolidated subsidiaries	3,133	7,471	26,050
Dividends on preferred stock	0	0	0
Net Income Attributable to Common Stockholders - basic	79,651	123,843	84,809
Investments	2,379,086	3,144,814	2,612,347
Cash and cash equivalents	27,987	30,639	159,635
Restricted cash	49,126	38,718	37,322
Other assets	2,199,220	3,721,620	1,794,096
Goodwill (Note 16)	0	0	0
Assets of consolidated CFEs	2,808,319	3,044,850	2,443,561
Total Assets	7,463,738	9,980,641	7,046,961
Debt	3,103,488	3,984,572	3,413,925
Other liabilities	433,762	1,837,801	286,408
Liabilities of consolidated CFEs	2,361,345	2,624,345	2,107,173
Total Liabilities	5,898,595	8,446,718	5,807,506
Total Equity	1,565,143	1,533,923	1,239,455
Noncontrolling interests in equity of consolidated subsidiaries	41,707	44,905	54,630
Total Rithm Capital stockholders’ equity	1,523,436	1,489,018	1,184,825
Investments in Equity Method Investees	291,637	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	0	0	0
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	0	0	0
Operating Segments | Investment Portfolio | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	0	0	0
Operating Segments | Investment Portfolio | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	319,596	322,143	277,057
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	10,442	38,784	(34,533)
Operating Segments | Investment Portfolio | Other revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	106,181	102,743	98,473
Operating Segments | Investment Portfolio | Asset management revenues
Segment Reporting Information [Line Items]
Total Revenues	0	0	0
Operating Segments | Residential Transitional Lending
Segment Reporting Information [Line Items]
Total Revenues	257,833	205,779	145,315
Interest expense and warehouse line fees	125,722	105,909	50,980
Other segment expenses	19,578	12,529	16,313
Compensation and benefits	47,320	43,547	41,662
Depreciation and amortization	6,268	6,282	6,302
Total Operating Expenses	198,888	168,267	115,257
Realized and unrealized gains (losses), net	54,020	1,500	36,390
Other income (loss), net	(1,603)	6,209	12,243
Total Other Loss, Net	52,417	7,709	48,633
Income before Income Taxes	111,362	45,221	78,691
Income tax expense	5,224	(5,122)	(7,792)
Net Income (Loss)	106,138	50,343	86,483
Noncontrolling interests in income (loss) of consolidated subsidiaries	0	0	0
Dividends on preferred stock	0	0	0
Net Income Attributable to Common Stockholders - basic	106,138	50,343	86,483
Investments	2,178,075	1,879,319	1,714,053
Cash and cash equivalents	37,605	58,628	52,441
Restricted cash	33,555	30,233	16,001
Other assets	138,397	108,523	169,894
Goodwill (Note 16)	55,731	55,731	55,731
Assets of consolidated CFEs	995,712	365,698	359,577
Total Assets	3,439,075	2,498,132	2,367,697
Debt	1,747,307	1,537,008	1,420,661
Other liabilities	29,999	23,608	25,469
Liabilities of consolidated CFEs	860,123	319,369	313,266
Total Liabilities	2,637,429	1,879,985	1,759,396
Total Equity	801,646	618,147	608,301
Noncontrolling interests in equity of consolidated subsidiaries	0	0	0
Total Rithm Capital stockholders’ equity	801,646	618,147	608,301
Investments in Equity Method Investees	13,352	0	0
Operating Segments | Residential Transitional Lending | 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 | Residential Transitional Lending | 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 | Residential Transitional Lending | Servicing revenue, net
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	0	0	0
Operating Segments | Residential Transitional Lending | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	257,833	205,779	145,315
Operating Segments | Residential Transitional Lending | 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 | Residential Transitional Lending | Other revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	0	0	0
Operating Segments | Residential Transitional Lending | Asset management revenues
Segment Reporting Information [Line Items]
Total Revenues	0	0	0
Operating Segments | Asset Management
Segment Reporting Information [Line Items]
Total Revenues	541,582	86,469	0
Interest expense and warehouse line fees	36,274	2,727	0
Other segment expenses	97,550	16,801	0
Compensation and benefits	328,758	42,839	0
Depreciation and amortization	30,598	4,230	0
Total Operating Expenses	493,180	66,597	0
Realized and unrealized gains (losses), net	(74)	8,060	0
Other income (loss), net	15,100	557	0
Total Other Loss, Net	15,026	8,617	0
Income before Income Taxes	63,428	28,489	0
Income tax expense	36,058	27,121	0
Net Income (Loss)	27,370	1,368	0
Noncontrolling interests in income (loss) of consolidated subsidiaries	4,302	365	0
Dividends on preferred stock	0	0	0
Net Income Attributable to Common Stockholders - basic	23,068	1,003	0
Investments	0	0	0
Cash and cash equivalents	174,819	230,008	0
Restricted cash	18,038	8,156	0
Other assets	962,845	1,069,203	0
Goodwill (Note 16)	48,633	46,658	0
Assets of consolidated CFEs	1,303,795	340,929	0
Total Assets	2,508,130	1,694,954	0
Debt	431,806	455,512	0
Other liabilities	104,879	345,999	0
Liabilities of consolidated CFEs	1,126,776	219,920	0
Total Liabilities	1,663,461	1,021,431	0
Total Equity	844,669	673,523	0
Noncontrolling interests in equity of consolidated subsidiaries	39,942	40,971	0
Total Rithm Capital stockholders’ equity	804,727	632,552	0
Investments in Equity Method Investees	113,662	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	21,288	3,788	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 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	520,294	82,681	0
Operating Segments | Corporate Category
Segment Reporting Information [Line Items]
Total Revenues	7	0	278
Interest expense and warehouse line fees	74,306	36,184	36,546
Other segment expenses	46,154	77,940	481,118
Compensation and benefits	48,076	36,206	15,909
Depreciation and amortization	21	65	348
Total Operating Expenses	168,557	150,395	533,921
Realized and unrealized gains (losses), net	0	0	67
Other income (loss), net	49	(26,361)	(19,170)
Total Other Loss, Net	49	(26,361)	(19,103)
Income before Income Taxes	(168,501)	(176,756)	(552,746)
Income tax expense	0	0	(75,388)
Net Income (Loss)	(168,501)	(176,756)	(477,358)
Noncontrolling interests in income (loss) of consolidated subsidiaries	0	0	0
Dividends on preferred stock	96,456	89,579	89,726
Net Income Attributable to Common Stockholders - basic	(264,957)	(266,335)	(567,084)
Investments	0	0	0
Cash and cash equivalents	214,006	419,258	520,241
Restricted cash	0	0	0
Other assets	5,752	20,483	28,043
Goodwill (Note 16)	0	0	0
Assets of consolidated CFEs	0	0	0
Total Assets	219,758	439,741	548,284
Debt	1,033,804	546,818	545,056
Other liabilities	235,846	213,121	159,783
Liabilities of consolidated CFEs	0	0	0
Total Liabilities	1,269,650	759,939	704,839
Total Equity	(1,049,892)	(320,198)	(156,555)
Noncontrolling interests in equity of consolidated subsidiaries	0	0	0
Total Rithm Capital stockholders’ equity	(1,049,892)	(320,198)	(156,555)
Investments in Equity Method Investees	0	0	0
Operating Segments | Corporate Category | 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 Category | 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 Category | 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 Category | Interest income
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	7	0	278
Operating Segments | Corporate Category | 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 Category | Other revenues
Segment Reporting Information [Line Items]
Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate revenues	0	0	0
Operating Segments | Corporate Category | Asset management revenues
Segment Reporting Information [Line Items]
Total Revenues	$ 0	$ 0	$ 0