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INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Schedule of Residential Mortgage Loans Outstanding by Loan Type, Excluding REO (Footnote) (Details) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 3 Months Ended
Feb. 28, 2013
Mar. 31, 2015
Mortgage Loans on Real Estate [Line Items]    
Threshold period past due   30 days
Net unamortized discounts and premiums   $ 0.7us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Reverse Mortgage Loans [Member]    
Mortgage Loans on Real Estate [Line Items]    
Interest in reverse mortgage loans 70.00%nrz_InterestinReversemortgageloans
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ReverseMortgageLoansMember		 70.00%nrz_InterestinReversemortgageloans
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ReverseMortgageLoansMember
Total unpaid principal balance   $ 0.3nrz_MortgageLoansonRealEstateUnpaidBalance
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ReverseMortgageLoansMember
Percentage of loans that have reached a termination event   76.00%nrz_PercentageOfLoansThatHaveReachedTerminationEvent
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ReverseMortgageLoansMember
Maximum [Member] | Performing Loans [Member]    
Mortgage Loans on Real Estate [Line Items]    
Threshold period past due   30 days