OTHER ASSETS AND LIABILITIES, GENERAL AND ADMINISTRATIVE, AND OTHER ITEMS - Schedule of Other Assets and Liabilities (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Margin receivable, net		$ 612,814	$ 271,753
Servicing fee receivables		122,206	137,426
Due from servicers		22,994	67,854
Principal and interest receivable		64,758	41,589
Equity investment		47,195	55,504
Other receivables		92,320	109,111
REO		35,984	45,299
Single-family rental properties		113,152	41,271
Goodwill		29,468	29,468
Notes receivable		50,411	52,389
Warrants, at fair value		24,473	23,218
Recovery asset		9,891	13,006
Property and equipment		31,494	27,493
Receivable from government agency		12,554	14,369
Intangible assets		33,358	34,125
Prepaid expenses		39,811	30,949
Operating lease right-of-use assets		24,851	26,913
Derivative assets		408,230	290,144
Ocwen common stock, at fair value		11,001	11,187
Other assets		39,144	35,354
Other assets	[1]	1,826,109	1,358,422
Other Liabilities [Abstract]
Margin payable		238,123	0
MSR purchase price holdback		22,684	25,121
Interest payable		37,345	44,623
Accounts payable		95,085	87,406
Derivative liabilities		74,735	119,762
Due to servicers		62,437	59,671
Due to agencies		19,605	26,748
Contingent consideration		14,655	14,247
Accrued compensation and benefits		54,010	67,025
Excess spread financing, at fair value		13,377	18,420
Operating lease liabilities		28,927	31,270
Reserve for sales recourse		9,837	9,799
Reserve for servicing losses		12,153	9,288
Deferred tax liability		93,149	7,859
Other liabilities		21,330	16,063
Accrued expenses and other liabilities		$ 797,452	$ 537,302

[1] The Company's consolidated statements of financial condition 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 (New Residential). As of March 31, 2021, and December 31, 2020, total assets of consolidated VIEs were $2.2 billion and $2.7 billion, respectively, and total liabilities of consolidated VIEs were $1.7 billion and $2.1 billion, respectively. See Note 13 for further details.