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INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS, EQUITY METHOD INVESTEES - Summary of Excess MSR Investments made through Equity Method Investees (Footnote) (Details) (Excess MSRs Investees [Member])
Mar. 31, 2015
Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]    
New Residential Interest in Investees 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
MSRs [Member]    
Schedule of Equity Method Investments [Line Items]    
New Residential Interest in Investees 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_FinancialInstrumentAxis
= nrz_MSRsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nrz_ExcessMortgageServicingRightsInvesteesMember