SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Interest income	$ 233,848	$ 448,127	$ 868,419	$ 1,303,041
Servicing revenue, net	(43,929)	53,050	(459,313)	133,366
Gain on originated mortgage loans, held-for-sale, net	495,098	126,747	984,818	294,935
Revenues	685,017	627,924	1,393,924	1,731,342
Interest expense	130,528	245,902	463,786	686,738
General and administrative expenses	339,042	250,565	926,283	632,815
Total operating expenses	469,570	496,467	1,390,069	1,319,553
Other income (loss)	20	102,640	(1,378,038)	12,727
Impairment	10,735	(5,123)	133,670	29,984
Income (Loss) Before Income Taxes	204,732	239,220	(1,507,853)	394,532
Income tax expense (benefit)	100,812	(5,440)	(48,647)	18,980
Net income (loss)	103,920	244,660	(1,459,206)	375,552
Noncontrolling interests in income (loss) of consolidated subsidiaries	11,640	14,738	34,118	31,979
Dividends on Preferred Stock	14,359	5,338	39,938	5,338
Net Income (Loss) Attributable to Common Stockholders	77,921	224,584	(1,533,262)	338,235
Investments	23,036,611		23,036,611
Cash and cash equivalents	841,022		841,022
Restricted cash	180,554		180,554			$ 162,197
Other assets	6,318,709		6,318,709
Goodwill	29,468		29,468			29,737
Total assets	30,406,364		30,406,364			44,863,454
Debt	22,942,274		22,942,274
Other liabilities	2,035,459		2,035,459
Total liabilities	24,977,733		24,977,733			37,627,194
Total equity	5,428,631	7,262,117	5,428,631	7,262,117	$ 5,388,972	7,236,260	$ 6,800,830	$ 6,088,295
Noncontrolling interests in equity of consolidated subsidiaries	99,437		99,437			78,550
Total New Residential stockholders’ equity	5,329,194		5,329,194			$ 7,157,710
Investments in equity method investees	139,351		139,351
Operating | Servicing and Origination
Segment Reporting Information [Line Items]
Interest income	109,356	149,077	351,395	428,293
Servicing revenue, net	(43,929)	53,050	(459,313)	133,366
Gain on originated mortgage loans, held-for-sale, net	495,098	105,136	978,156	232,536
Revenues	560,525	307,263	870,238	794,195
Interest expense	70,717	69,679	208,495	208,048
General and administrative expenses	296,684	170,444	777,141	459,620
Total operating expenses	367,401	240,123	985,636	667,668
Other income (loss)	(19,630)	(43,142)	(266,355)	(131,385)
Impairment	218	0	127	0
Income (Loss) Before Income Taxes	173,276	23,998	(381,880)	(4,858)
Income tax expense (benefit)	93,030	10,749	15,724	8,474
Net income (loss)	80,246	13,249	(397,604)	(13,332)
Noncontrolling interests in income (loss) of consolidated subsidiaries	7,452	4,141	10,498	8,873
Dividends on Preferred Stock	0	0	0	0
Net Income (Loss) Attributable to Common Stockholders	72,794	9,108	(408,102)	(22,205)
Investments	8,597,086		8,597,086
Cash and cash equivalents	557,228		557,228
Restricted cash	138,464		138,464
Other assets	5,027,395		5,027,395
Goodwill	29,468		29,468
Total assets	14,349,641		14,349,641
Debt	8,600,386		8,600,386
Other liabilities	1,889,872		1,889,872
Total liabilities	10,490,258		10,490,258
Total equity	3,859,383		3,859,383
Noncontrolling interests in equity of consolidated subsidiaries	61,311		61,311
Total New Residential stockholders’ equity	3,798,072		3,798,072
Investments in equity method investees	139,351		139,351
Operating | Consumer Loans
Segment Reporting Information [Line Items]
Interest income	29,545	40,331	97,204	128,575
Servicing revenue, net	0	0	0	0
Gain on originated mortgage loans, held-for-sale, net	0	0	0	0
Revenues	29,545	40,331	97,204	128,575
Interest expense	5,809	7,493	18,691	25,518
General and administrative expenses	3,361	3,965	10,947	18,396
Total operating expenses	9,170	11,458	29,638	43,914
Other income (loss)	(5,240)	(2,651)	(16,007)	(10,324)
Impairment	0	5,863	0	24,599
Income (Loss) Before Income Taxes	15,135	20,359	51,559	49,738
Income tax expense (benefit)	(1)	(643)	130	(542)
Net income (loss)	15,136	21,002	51,429	50,280
Noncontrolling interests in income (loss) of consolidated subsidiaries	4,188	10,597	23,620	23,106
Dividends on Preferred Stock	0	0	0	0
Net Income (Loss) Attributable to Common Stockholders	10,948	10,405	27,809	27,174
Investments	722,108		722,108
Cash and cash equivalents	7,195		7,195
Restricted cash	29,367		29,367
Other assets	59,968		59,968
Goodwill	0		0
Total assets	818,638		818,638
Debt	681,109		681,109
Other liabilities	5,425		5,425
Total liabilities	686,534		686,534
Total equity	132,104		132,104
Noncontrolling interests in equity of consolidated subsidiaries	38,126		38,126
Total New Residential stockholders’ equity	93,978		93,978
Investments in equity method investees	0		0
Eliminations
Segment Reporting Information [Line Items]
Interest income	0	0	0	0
Servicing revenue, net	(70,595)	(19,636)	(156,513)	(46,549)
Gain on originated mortgage loans, held-for-sale, net	38,990	(14,892)	26,054	(34,195)
Revenues	(31,605)	(34,528)	(130,459)	(80,744)
Interest expense	0	0	0	0
General and administrative expenses	(70,595)	(19,636)	(156,513)	(46,549)
Total operating expenses	(70,595)	(19,636)	(156,513)	(46,549)
Other income (loss)	0	0	0	0
Impairment	0	0	0	0
Income (Loss) Before Income Taxes	38,990	(14,892)	26,054	(34,195)
Income tax expense (benefit)	0	0	0	0
Net income (loss)	38,990	(14,892)	26,054	(34,195)
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	38,990	(14,892)	26,054	(34,195)
Investments	0		0
Cash and cash equivalents	0		0
Restricted cash	0		0
Other assets	0		0
Goodwill	0		0
Total assets	0		0
Debt	0		0
Other liabilities	0		0
Total liabilities	0		0
Total equity	0		0
Noncontrolling interests in equity of consolidated subsidiaries	0		0
Total New Residential stockholders’ equity	0		0
Investments in equity method investees	0		0
Corporate
Segment Reporting Information [Line Items]
Interest income	0	0	0	0
Servicing revenue, net	0	0	0	0
Gain on originated mortgage loans, held-for-sale, net	0	0	0	0
Revenues	0	0	0	0
Interest expense	19,024	0	27,690	0
General and administrative expenses	27,706	62,655	83,672	121,730
Total operating expenses	46,730	62,655	111,362	121,730
Other income (loss)	(56,750)	(1,189)	(103,519)	4,515
Impairment	0	0	0	0
Income (Loss) Before Income Taxes	(103,480)	(63,844)	(214,881)	(117,215)
Income tax expense (benefit)	0	0	0	0
Net income (loss)	(103,480)	(63,844)	(214,881)	(117,215)
Noncontrolling interests in income (loss) of consolidated subsidiaries	0	0	0	0
Dividends on Preferred Stock	14,359	5,338	39,938	5,338
Net Income (Loss) Attributable to Common Stockholders	(117,839)	(69,182)	(254,819)	(122,553)
Investments	0		0
Cash and cash equivalents	111,154		111,154
Restricted cash	0		0
Other assets	32,105		32,105
Goodwill	0		0
Total assets	143,259		143,259
Debt	541,758		541,758
Other liabilities	84,833		84,833
Total liabilities	626,591		626,591
Total equity	(483,332)		(483,332)
Noncontrolling interests in equity of consolidated subsidiaries	0		0
Total New Residential stockholders’ equity	(483,332)		(483,332)
Investments in equity method investees	0		0
Origination | Operating | Servicing and Origination
Segment Reporting Information [Line Items]
Interest income	17,407	10,880	43,105	25,744
Servicing revenue, net	(3,767)	(548)	(6,843)	(1,215)
Gain on originated mortgage loans, held-for-sale, net	445,578	104,126	885,730	228,881
Revenues	459,218	114,458	921,992	253,410
Interest expense	10,977	10,359	30,071	24,012
General and administrative expenses	136,086	67,708	338,760	169,980
Total operating expenses	147,063	78,067	368,831	193,992
Other income (loss)	123	(149)	497	808
Impairment	0	0	0	0
Income (Loss) Before Income Taxes	312,278	36,242	553,658	60,226
Income tax expense (benefit)	71,304	9,674	138,304	16,075
Net income (loss)	240,974	26,568	415,354	44,151
Noncontrolling interests in income (loss) of consolidated subsidiaries	4,840	2,457	10,542	4,407
Dividends on Preferred Stock	0	0	0	0
Net Income (Loss) Attributable to Common Stockholders	236,134	24,111	404,812	39,744
Investments	2,843,720		2,843,720
Cash and cash equivalents	99,321		99,321
Restricted cash	3,929		3,929
Other assets	369,988		369,988
Goodwill	11,836		11,836
Total assets	3,328,794		3,328,794
Debt	2,612,817		2,612,817
Other liabilities	165,022		165,022
Total liabilities	2,777,839		2,777,839
Total equity	550,955		550,955
Noncontrolling interests in equity of consolidated subsidiaries	18,365		18,365
Total New Residential stockholders’ equity	532,590		532,590
Investments in equity method investees	0		0
Servicing | Operating | Servicing and Origination
Segment Reporting Information [Line Items]
Interest income	373	8,847	8,975	23,181
Servicing revenue, net	111,420	54,646	295,047	146,730
Gain on originated mortgage loans, held-for-sale, net	346	348	948	681
Revenues	112,139	63,841	304,970	170,592
Interest expense	90	264	397	737
General and administrative expenses	81,767	41,850	220,026	118,329
Total operating expenses	81,857	42,114	220,423	119,066
Other income (loss)	0	0	499	0
Impairment	0	0	0	0
Income (Loss) Before Income Taxes	30,282	21,727	85,046	51,526
Income tax expense (benefit)	6,044	5,799	21,244	13,753
Net income (loss)	24,238	15,928	63,802	37,773
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	24,238	15,928	63,802	37,773
Investments	0		0
Cash and cash equivalents	50,942		50,942
Restricted cash	32,369		32,369
Other assets	191,398		191,398
Goodwill	12,540		12,540
Total assets	287,249		287,249
Debt	6,669		6,669
Other liabilities	63,657		63,657
Total liabilities	70,326		70,326
Total equity	216,923		216,923
Noncontrolling interests in equity of consolidated subsidiaries	0		0
Total New Residential stockholders’ equity	216,923		216,923
Investments in equity method investees	0		0
MSR Related Investments | Operating | Servicing and Origination
Segment Reporting Information [Line Items]
Interest income	91,576	129,350	299,315	379,368
Servicing revenue, net	(80,987)	18,588	(591,004)	34,400
Gain on originated mortgage loans, held-for-sale, net	10,184	15,554	65,424	37,169
Revenues	20,773	163,492	(226,265)	450,937
Interest expense	59,650	59,056	178,027	183,299
General and administrative expenses	149,426	80,522	374,868	217,860
Total operating expenses	209,076	139,578	552,895	401,159
Other income (loss)	(19,753)	(42,993)	(267,351)	(132,193)
Impairment	218	0	127	0
Income (Loss) Before Income Taxes	(208,274)	(19,079)	(1,046,638)	(82,415)
Income tax expense (benefit)	15,682	(4,724)	(143,824)	(21,354)
Net income (loss)	(223,956)	(14,355)	(902,814)	(61,061)
Noncontrolling interests in income (loss) of consolidated subsidiaries	2,612	1,684	(44)	4,466
Dividends on Preferred Stock	0	0	0	0
Net Income (Loss) Attributable to Common Stockholders	(226,568)	(16,039)	(902,770)	(65,527)
Investments	5,753,366		5,753,366
Cash and cash equivalents	406,965		406,965
Restricted cash	102,166		102,166
Other assets	4,466,009		4,466,009
Goodwill	5,092		5,092
Total assets	10,733,598		10,733,598
Debt	5,980,900		5,980,900
Other liabilities	1,661,193		1,661,193
Total liabilities	7,642,093		7,642,093
Total equity	3,091,505		3,091,505
Noncontrolling interests in equity of consolidated subsidiaries	42,946		42,946
Total New Residential stockholders’ equity	3,048,559		3,048,559
Investments in equity method investees	139,351		139,351
Real Estate Securities | Operating | Residential Securities and Loans
Segment Reporting Information [Line Items]
Interest income	61,034	184,933	278,702	557,895
Servicing revenue, net	0	0	0	0
Gain on originated mortgage loans, held-for-sale, net	0	0	0	0
Revenues	61,034	184,933	278,702	557,895
Interest expense	15,652	123,023	141,340	330,992
General and administrative expenses	930	1,839	8,128	4,124
Total operating expenses	16,582	124,862	149,468	335,116
Other income (loss)	36,941	116,081	(881,261)	31,677
Impairment	(3,849)	5,567	15,166	21,942
Income (Loss) Before Income Taxes	85,242	170,585	(767,193)	232,514
Income tax expense (benefit)	0	0	0	0
Net income (loss)	85,242	170,585	(767,193)	232,514
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	85,242	170,585	(767,193)	232,514
Investments	10,830,067		10,830,067
Cash and cash equivalents	160,764		160,764
Restricted cash	12,723		12,723
Other assets	1,005,847		1,005,847
Goodwill	0		0
Total assets	12,009,401		12,009,401
Debt	10,877,414		10,877,414
Other liabilities	9,633		9,633
Total liabilities	10,887,047		10,887,047
Total equity	1,122,354		1,122,354
Noncontrolling interests in equity of consolidated subsidiaries	0		0
Total New Residential stockholders’ equity	1,122,354		1,122,354
Investments in equity method investees	0		0
Residential Mortgage Loans | Operating | Residential Securities and Loans
Segment Reporting Information [Line Items]
Interest income	33,913	73,786	141,118	188,278
Servicing revenue, net	0	0	0	0
Gain on originated mortgage loans, held-for-sale, net	0	21,611	6,662	62,399
Revenues	33,913	95,397	147,780	250,677
Interest expense	19,326	45,707	67,570	122,180
General and administrative expenses	10,361	11,662	46,395	28,945
Total operating expenses	29,687	57,369	113,965	151,125
Other income (loss)	44,699	33,541	(110,896)	118,244
Impairment	14,366	(16,553)	118,377	(16,557)
Income (Loss) Before Income Taxes	34,559	88,122	(195,458)	234,353
Income tax expense (benefit)	7,783	(15,546)	(64,501)	11,048
Net income (loss)	26,776	103,668	(130,957)	223,305
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	26,776	$ 103,668	(130,957)	$ 223,305
Investments	2,887,350		2,887,350
Cash and cash equivalents	4,681		4,681
Restricted cash	0		0
Other assets	193,394		193,394
Goodwill	0		0
Total assets	3,085,425		3,085,425
Debt	2,241,607		2,241,607
Other liabilities	45,696		45,696
Total liabilities	2,287,303		2,287,303
Total equity	798,122		798,122
Noncontrolling interests in equity of consolidated subsidiaries	0		0
Total New Residential stockholders’ equity	798,122		798,122
Investments in equity method investees	$ 0		$ 0