Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS IN REAL ESTATE AND OTHER SECURITIES - Summary of Real Estate Securities in an Unrealized Loss Position - Associated Intent to Sell (Details)

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INVESTMENTS IN REAL ESTATE AND OTHER SECURITIES - Summary of Real Estate Securities in an Unrealized Loss Position - Associated Intent to Sell (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Securities New Residential intends to sell    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 0 $ 0
Amortized Cost Basis After Credit Impairment 0 0
Gross Unrealized Losses, Credit 0 0
Gross unrealized Losses, Non-Credit 0 0
Securities New Residential is more likely than not to be required to sell(D)    
Debt Securities, Available-for-sale [Line Items]    
Fair Value 0 0
Amortized Cost Basis After Credit Impairment 0 0
Gross Unrealized Losses, Credit 0 0
Credit impaired securities    
Debt Securities, Available-for-sale [Line Items]    
Fair Value 560,375 228,228
Amortized Cost Basis After Credit Impairment 598,610 237,626
Gross Unrealized Losses, Credit (44,149) (3,232)
Gross unrealized Losses, Non-Credit (38,235) (9,398)
Non-credit impaired securities    
Debt Securities, Available-for-sale [Line Items]    
Fair Value 850,043 4,726,409
Amortized Cost Basis After Credit Impairment 959,141 4,767,837
Gross Unrealized Losses, Credit 0 0
Gross unrealized Losses, Non-Credit (109,098) (41,428)
Total debt securities in an unrealized loss position    
Debt Securities, Available-for-sale [Line Items]    
Fair Value 1,410,418 4,954,637
Amortized Cost Basis After Credit Impairment 1,557,751 5,005,463
Gross Unrealized Losses, Credit (44,149) (3,232)
Gross unrealized Losses, Non-Credit $ (147,333) $ (50,826)