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INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Summary of Activities Related to the Carrying Value of Loans Held-for-sale (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Loans Held-for-sale, Reconciliation [Roll Forward]    
Adoption of ASU No. 2014-11 $ (2,310)us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification  
Loans Held-for-sale [Member]    
Loans Held-for-sale, Reconciliation [Roll Forward]    
Beginning balance, loans held-for-sale 1,126,439us-gaap_LoansReceivableHeldForSaleAmount
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		  
Purchases 0us-gaap_PaymentsToPurchaseLoansHeldForSale
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		 [1]  
Sales (606,155)us-gaap_ProceedsFromSaleOfLoansHeldForSale
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		  
Transfer of loans to real estate owned (15,417)us-gaap_TransferToOtherRealEstate
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		  
Proceeds from repayments (5,682)us-gaap_ProceedsFromCollectionOfLoansHeldForSale
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		  
Valuation provision on loans (842)us-gaap_IncreaseDecreaseInLoansHeldForSale
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		 [2]  
Ending balance, loans held-for-sale 500,174us-gaap_LoansReceivableHeldForSaleAmount
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		  
Accounting Standards Update 2014-11 [Member]    
Loans Held-for-sale, Reconciliation [Roll Forward]    
Adoption of ASU No. 2014-11 (85,955)us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
/ us-gaap_AdjustmentsForNewAccountingPronouncementsAxis
= nrz_AccountingStandardsUpdate201411Member		 0us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
/ us-gaap_AdjustmentsForNewAccountingPronouncementsAxis
= nrz_AccountingStandardsUpdate201411Member
Accounting Standards Update 2014-11 [Member] | Loans Held-for-sale [Member]    
Loans Held-for-sale, Reconciliation [Roll Forward]    
Adoption of ASU No. 2014-11 $ 1,831us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
/ us-gaap_AdjustmentsForNewAccountingPronouncementsAxis
= nrz_AccountingStandardsUpdate201411Member
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= nrz_LoansHeldforsaleMember		 [3]  
[1] Represents loans acquired with the intent to sell.
[2] Represents the fair value adjustments to loans upon transfer to held-for-sale and provision recorded on certain purchased held-for-sale loans.
[3] Represents loans financed with the selling counterparty that were previously accounted for as linked transactions.