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, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of MSRs [Line Items]
Excess MSR assets	$ 321,197	$ 372,391
Other assets	22,333	17,184
Other liabilities	0	0
Equity	343,530	389,575
New Residential’s investment	$ 171,765	$ 194,788
New Residential’s ownership	50.00%	50.00%
Interest income	$ 27,450	$ 36,502	$ 51,811
Other income (loss)	(2,149)	(3,359)	10,615
Expenses	(68)	(91)	(107)
Net income	$ 25,233	$ 33,052	$ 62,319