SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Interest income	$ 357,467	$ 397,722	$ 471,952	$ 292,538	$ 326,834	$ 282,388	$ 277,477	$ 190,036	$ 1,519,679	$ 1,076,735	$ 645,072
Interest expense	122,201	125,278	115,157	98,229	95,023	96,488	100,685	81,228	460,865	373,424	274,013
Net interest income (expense)	235,266	272,444	356,795	194,309	231,811	185,900	176,792	108,808	1,058,814	703,311	371,059
Impairment	11,975	28,209	25,886	20,022	38,297	20,040	19,644	9,999	86,092	87,980	24,384
Servicing revenue, net	154,882	58,014	170,851	40,602	118,169	0	0	0	424,349	118,169	0
Other income (loss)	66,488	87,145	57,847	(3,694)	23,437	26,701	(19,723)	31,922	207,786	62,337	42,029
Operating expenses	97,716	117,060	139,360	68,441	72,339	40,575	36,280	25,016	422,577	174,210	117,823
Income (Loss) Before Income Taxes	346,945	272,334	420,247	142,754	262,781	151,986	101,145	105,715	1,182,280	621,627	270,881
Income tax expense (benefit)	46,575	32,613	82,844	5,596	20,716	20,900	7,518	(10,223)	167,628	38,911	(11,001)
Net Income (Loss)	300,370	239,721	337,403	137,158	242,065	131,086	93,627	115,938	1,014,652	582,716	281,882
Noncontrolling interests in income (loss) of consolidated subsidiaries	12,068	13,600	15,671	15,780	16,908	32,178	24,975	4,202	57,119	78,263	13,246
Net income (loss) attributable to common stockholders	288,302	$ 226,121	$ 321,732	$ 121,378	225,157	$ 98,908	$ 68,652	$ 111,736	957,533	504,453	268,636
Investments	19,748,888				15,780,680				19,748,888	15,780,680
Cash and cash equivalents	295,798				290,602				295,798	290,602
Restricted cash	150,252				163,095				150,252	163,095
Other assets	2,018,624				2,165,152				2,018,624	2,165,152
Total assets	22,213,562				18,399,529				22,213,562	18,399,529
Debt	15,746,530				13,181,236				15,746,530	13,181,236	11,292,622
Other liabilities	1,670,870				1,750,116				1,670,870	1,750,116
Total liabilities	17,417,400				14,931,352				17,417,400	14,931,352
Total equity	4,796,162				3,468,177				4,796,162	3,468,177	2,986,580	$ 1,849,925
Noncontrolling interests in equity of consolidated subsidiaries	105,957				208,077				105,957	208,077
Total New Residential stockholders’ equity	4,690,205				3,260,100				4,690,205	3,260,100
Investments in equity method investees	223,177				194,788				223,177	194,788
Excess MSRs
Segment Reporting Information [Line Items]
Interest income									103,053	150,141	134,565
Interest expense									36,086	19,160	11,625
Net interest income (expense)									66,967	130,981	122,940
Impairment									0	0	0
Servicing revenue, net									0	0
Other income (loss)									18,919	11,398	72,802
Operating expenses									606	1,259	1,101
Income (Loss) Before Income Taxes									85,280	141,120	194,641
Income tax expense (benefit)									0	0	0
Net Income (Loss)									85,280	141,120	194,641
Noncontrolling interests in income (loss) of consolidated subsidiaries									0	0	0
Net income (loss) attributable to common stockholders									85,280	141,120	194,641
Investments	1,345,478				1,594,243				1,345,478	1,594,243
Cash and cash equivalents	408				2,225				408	2,225
Restricted cash	13,153				24,538				13,153	24,538
Other assets	2,891				2,404				2,891	2,404
Total assets	1,361,930				1,623,410				1,361,930	1,623,410
Debt	483,978				729,145				483,978	729,145
Other liabilities	1,033				2,189				1,033	2,189
Total liabilities	485,011				731,334				485,011	731,334
Total equity	876,919				892,076				876,919	892,076
Noncontrolling interests in equity of consolidated subsidiaries	0				0				0	0
Total New Residential stockholders’ equity	876,919				892,076				876,919	892,076
Investments in equity method investees	171,765				194,788				171,765	194,788
MSRs
Segment Reporting Information [Line Items]
Interest income									78,715	0
Interest expense									43,327	0
Net interest income (expense)									35,388	0
Impairment									0	0
Servicing revenue, net									424,349	118,169
Other income (loss)									66,608	0
Operating expenses									180,604	10,693
Income (Loss) Before Income Taxes									345,741	107,476
Income tax expense (benefit)									22,393	15,683
Net Income (Loss)									323,348	91,793
Noncontrolling interests in income (loss) of consolidated subsidiaries									0	0
Net income (loss) attributable to common stockholders									323,348	91,793
Investments	2,334,232				659,483				2,334,232	659,483
Cash and cash equivalents	104,545				95,840				104,545	95,840
Restricted cash	30,454				0				30,454	0
Other assets	726,530				75,102				726,530	75,102
Total assets	3,195,761				830,425				3,195,761	830,425
Debt	1,761,011				0				1,761,011	0
Other liabilities	194,465				132,417				194,465	132,417
Total liabilities	1,955,476				132,417				1,955,476	132,417
Total equity	1,240,285				698,008				1,240,285	698,008
Noncontrolling interests in equity of consolidated subsidiaries	0				0				0	0
Total New Residential stockholders’ equity	1,240,285				698,008				1,240,285	698,008
Investments in equity method investees	0				0				0	0
Servicer Advances
Segment Reporting Information [Line Items]
Interest income									531,645	369,809	354,616
Interest expense									154,174	224,879	216,837
Net interest income (expense)									377,471	144,930	137,779
Impairment									0	0	0
Servicing revenue, net									0	0
Other income (loss)									89,034	(4,624)	(53,426)
Operating expenses									5,120	3,724	14,316
Income (Loss) Before Income Taxes									461,385	136,582	70,037
Income tax expense (benefit)									143,793	21,036	(8,127)
Net Income (Loss)									317,592	115,546	78,164
Noncontrolling interests in income (loss) of consolidated subsidiaries									11,227	40,136	18,407
Net income (loss) attributable to common stockholders									306,365	75,410	59,757
Investments	4,027,379				5,806,740				4,027,379	5,806,740
Cash and cash equivalents	78,353				94,368				78,353	94,368
Restricted cash	60,516				82,122				60,516	82,122
Other assets	18,576				180,705				18,576	180,705
Total assets	4,184,824				6,163,935				4,184,824	6,163,935
Debt	3,526,380				5,698,160				3,526,380	5,698,160
Other liabilities	(5,658)				24,123				(5,658)	24,123
Total liabilities	3,520,722				5,722,283				3,520,722	5,722,283
Total equity	664,102				441,652				664,102	441,652
Noncontrolling interests in equity of consolidated subsidiaries	71,491				173,057				71,491	173,057
Total New Residential stockholders’ equity	592,611				268,595				592,611	268,595
Investments in equity method investees	0				0				0	0
Real Estate Securities
Segment Reporting Information [Line Items]
Interest income									431,706	265,862	110,123
Interest expense									122,997	49,283	18,230
Net interest income (expense)									308,709	216,579	91,893
Impairment									10,334	10,264	5,788
Servicing revenue, net									0	0
Other income (loss)									(16,371)	(47,747)	(33,604)
Operating expenses									1,471	1,480	1,227
Income (Loss) Before Income Taxes									280,533	157,088	51,274
Income tax expense (benefit)									0	0	0
Net Income (Loss)									280,533	157,088	51,274
Noncontrolling interests in income (loss) of consolidated subsidiaries									0	0	0
Net income (loss) attributable to common stockholders									280,533	157,088	51,274
Investments	8,071,140				4,973,711				8,071,140	4,973,711
Cash and cash equivalents	38,728				8,405				38,728	8,405
Restricted cash	0				0				0	0
Other assets	1,098,921				1,753,076				1,098,921	1,753,076
Total assets	9,208,789				6,735,192				9,208,789	6,735,192
Debt	6,534,300				4,203,249				6,534,300	4,203,249
Other liabilities	1,200,905				1,394,682				1,200,905	1,394,682
Total liabilities	7,735,205				5,597,931				7,735,205	5,597,931
Total equity	1,473,584				1,137,261				1,473,584	1,137,261
Noncontrolling interests in equity of consolidated subsidiaries	0				0				0	0
Total New Residential stockholders’ equity	1,473,584				1,137,261				1,473,584	1,137,261
Investments in equity method investees	0				0				0	0
Residential Mortgage Loans
Segment Reporting Information [Line Items]
Interest income									110,087	56,249	43,180
Interest expense									51,473	25,675	21,510
Net interest income (expense)									58,614	30,574	21,670
Impairment									12,593	23,870	18,596
Servicing revenue, net									0	0
Other income (loss)									16,175	26,779	15,405
Operating expenses									31,529	14,961	13,415
Income (Loss) Before Income Taxes									30,667	18,522	5,064
Income tax expense (benefit)									1,272	2,117	(3,199)
Net Income (Loss)									29,395	16,405	8,263
Noncontrolling interests in income (loss) of consolidated subsidiaries									0	0	0
Net income (loss) attributable to common stockholders									29,395	16,405	8,263
Investments	2,544,984				947,017				2,544,984	947,017
Cash and cash equivalents	15,483				5,366				15,483	5,366
Restricted cash	0				0				0	0
Other assets	113,035				100,951				113,035	100,951
Total assets	2,673,502				1,053,334				2,673,502	1,053,334
Debt	2,108,007				783,006				2,108,007	783,006
Other liabilities	23,917				22,689				23,917	22,689
Total liabilities	2,131,924				805,695				2,131,924	805,695
Total equity	541,578				247,639				541,578	247,639
Noncontrolling interests in equity of consolidated subsidiaries	0				0				0	0
Total New Residential stockholders’ equity	541,578				247,639				541,578	247,639
Investments in equity method investees	0				0				0	0
Consumer Loans
Segment Reporting Information [Line Items]
Interest income									263,844	232,750	1
Interest expense									52,808	54,427	1,615
Net interest income (expense)									211,036	178,323	(1,614)
Impairment									63,165	53,846	0
Servicing revenue, net									0	0
Other income (loss)									28,075	76,518	43,954
Operating expenses									43,552	39,466	228
Income (Loss) Before Income Taxes									132,394	161,529	42,112
Income tax expense (benefit)									170	75	325
Net Income (Loss)									132,224	161,454	41,787
Noncontrolling interests in income (loss) of consolidated subsidiaries									45,892	38,127	0
Net income (loss) attributable to common stockholders									86,332	123,327	41,787
Investments	1,425,675				1,799,486				1,425,675	1,799,486
Cash and cash equivalents	40,687				27,962				40,687	27,962
Restricted cash	46,129				56,435				46,129	56,435
Other assets	28,621				35,921				28,621	35,921
Total assets	1,541,112				1,919,804				1,541,112	1,919,804
Debt	1,332,854				1,767,676				1,332,854	1,767,676
Other liabilities	6,596				6,382				6,596	6,382
Total liabilities	1,339,450				1,774,058				1,339,450	1,774,058
Total equity	201,662				145,746				201,662	145,746
Noncontrolling interests in equity of consolidated subsidiaries	34,466				35,020				34,466	35,020
Total New Residential stockholders’ equity	167,196				110,726				167,196	110,726
Investments in equity method investees	51,412				0				51,412	0
Corporate
Segment Reporting Information [Line Items]
Interest income									629	1,924	2,587
Interest expense									0	0	4,196
Net interest income (expense)									629	1,924	(1,609)
Impairment									0	0	0
Servicing revenue, net									0	0
Other income (loss)									5,346	13	(3,102)
Operating expenses									159,695	102,627	87,536
Income (Loss) Before Income Taxes									(153,720)	(100,690)	(92,247)
Income tax expense (benefit)									0	0	0
Net Income (Loss)									(153,720)	(100,690)	(92,247)
Noncontrolling interests in income (loss) of consolidated subsidiaries									0	0	(5,161)
Net income (loss) attributable to common stockholders									(153,720)	(100,690)	$ (87,086)
Investments	0				0				0	0
Cash and cash equivalents	17,594				56,436				17,594	56,436
Restricted cash	0				0				0	0
Other assets	30,050				16,993				30,050	16,993
Total assets	47,644				73,429				47,644	73,429
Debt	0				0				0	0
Other liabilities	249,612				167,634				249,612	167,634
Total liabilities	249,612				167,634				249,612	167,634
Total equity	(201,968)				(94,205)				(201,968)	(94,205)
Noncontrolling interests in equity of consolidated subsidiaries	0				0				0	0
Total New Residential stockholders’ equity	(201,968)				(94,205)				(201,968)	(94,205)
Investments in equity method investees	$ 0				$ 0				$ 0	$ 0