INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Summary of Financial Results of Excess MSR Joint Ventures (Details) - Excess MSRs Investees - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of MSRs [Line Items]
Excess MSR assets	$ 269,203	$ 321,197
Other assets	27,411	22,333
Other liabilities	(687)	0
Equity	295,927	343,530
New Residential’s investment	$ 147,964	$ 171,765
New Residential’s ownership	50.00%	50.00%
Interest income	$ 26,363	$ 27,450	$ 36,502
Other income (loss)	(9,649)	(2,149)	(3,359)
Expenses	0	(68)	(91)
Net income	$ 16,714	$ 25,233	$ 33,052