INVESTMENTS IN MORTGAGE SERVICING RIGHTS AND MORTGAGE SERVICING RIGHTS FINANCING RECEIVABLES - Schedule of Activity Related to the Carrying Value of Investments in MSRs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Activity related to carrying value of investments in mortgage servicing rights [Roll Forward]
Beginning Balance			$ 598,728
Ending Balance	$ 1,681,072		1,681,072
MSRs
Activity related to carrying value of investments in mortgage servicing rights [Roll Forward]
Investments made			801,366
Transfer out			135,288
Amortization of servicing rights	(70,933)	$ (68,850)	(191,499)	$ (159,451)
Change in valuation inputs and assumptions			222,751
Mortgage Servicing Rights Financing Receivable | MSRs
Activity related to carrying value of investments in mortgage servicing rights [Roll Forward]
Ending Balance	1,681,072		1,681,072
Mortgage Servicing Rights Financing Receivable | New Residential Mortgage LLC | MSRs
Activity related to carrying value of investments in mortgage servicing rights [Roll Forward]
Beginning Balance			598,728
Investments made			138,993
Transfer out			(135,288)
New Ocwen Agreements			1,017,993
Proceeds from sales			(2,982)
Amortization of servicing rights	(49,016)	(18,883)	(154,559)	(20,010)
Change in valuation inputs and assumptions	(39,329)	$ 89,115	218,187	$ 95,838
Ending Balance	$ 1,681,072		$ 1,681,072