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INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Narrative (Details) (USD $)
 3 Months Ended 0 Months Ended
Mar. 31, 2015
Jan. 16, 2015
Excess MSRs Investees [Member]    
Investment [Line Items]    
Unpaid Principal Balance (“UPB”) of Underlying Mortgages 84,000,746,000nrz_UnpaidPrincipalBalanceOfUnderlyingLoan
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nrz_ExcessMortgageServicingRightsInvesteesMember		  
Excess MSRs Investees [Member] | MSRs [Member]    
Investment [Line Items]    
Weighted average discount rate, used to value investments in excess MSRs 9.60%us-gaap_WeightedAverageDiscountRatePercent
/ us-gaap_FinancialInstrumentAxis
= nrz_MSRsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nrz_ExcessMortgageServicingRightsInvesteesMember		  
Excess MSRs [Member]    
Investment [Line Items]    
Purchase of servicer advance investments   23,800,000us-gaap_PaymentsToAcquireOtherInvestments
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ExcessMSRsSegmentMember
Unpaid Principal Balance (“UPB”) of Underlying Mortgages   $ 8,400,000,000nrz_UnpaidPrincipalBalanceOfUnderlyingLoan
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ExcessMSRsSegmentMember
Freddie Mac [Member] | Excess MSRs [Member]    
Investment [Line Items]    
Percentage of Excess MSRs acquired   33.30%nrz_MortgageServicingRightsMSRAcquiredPercentOne
/ us-gaap_CounterpartyNameAxis
= nrz_FreddieMacMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= nrz_ExcessMSRsSegmentMember