ORGANIZATION - Summary of Total Consideration (Details) $ / shares in Units, $ in Thousands	Oct. 23, 2015 USD ($) right $ / shares	Apr. 06, 2015 USD ($) $ / shares shares	Dec. 31, 2017 $ / shares	Dec. 31, 2016 $ / shares
Business Combination, Separately Recognized Transactions [Line Items]
New Residential's 4/6/2015 share price (in dollars per share) | $ / shares			$ 17.88
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01
HLSS
Business Combination, Separately Recognized Transactions [Line Items]
Share issuance consideration (in shares) | shares		28,286,980
New Residential's 4/6/2015 share price (in dollars per share) | $ / shares		$ 15.3460
Dollar value of share issuance		$ 434,092
Cash consideration		621,982
HLSS seller financing		385,174
HLSS New Merger Payment (71,016,771 @ $0.704059)	$ 50,000
Total consideration		$ 1,491,248
Number of rights exercisable (in shares) | right	71,016,771
Exercisable rights, per right amount in cash (in dollars per share) | $ / shares	$ 0.704059
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Purchase price		$ 1,000,000
Contingent consideration paid	$ 5,100
Minimum | HLSS
Business Combination, Separately Recognized Transactions [Line Items]
HLSS New Merger Payment (71,016,771 @ $0.704059)	0
Maximum | HLSS
Business Combination, Separately Recognized Transactions [Line Items]
HLSS New Merger Payment (71,016,771 @ $0.704059)	$ 50,000