Quarterly report pursuant to Section 13 or 15(d)

REAL ESTATE SECURITIES - Geographic Distribution of Collateral Securing Newcastle's CMBS and ABS (Details 4)

v2.4.1.9
REAL ESTATE SECURITIES - Geographic Distribution of Collateral Securing Newcastle's CMBS and ABS (Details 4) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
CMBS [Member]  
Principal balance $ 209,371us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 100.00%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Western US [Member]  
Principal balance 28,315us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_WesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 13.50%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_WesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Northeastern US [Member]  
Principal balance 58,336us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_NortheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 27.80%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_NortheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Southeastern US [Member]  
Principal balance 44,957us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SoutheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 21.50%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SoutheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Midwestern US [Member]  
Principal balance 35,954us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_MidwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 17.20%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_MidwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Southwestern US [Member]  
Principal balance 27,605us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SouthwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 13.20%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SouthwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Other Locations [Member]  
Principal balance 10,825us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_OtherLocationsMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 5.20%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_OtherLocationsMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
CMBS [Member] | Foreign [Member]  
Principal balance 3,379us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_ForeignMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Percentage of principal balance 1.60%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_ForeignMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
ABS [Member]  
Principal balance 73,184us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 100.00%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
ABS [Member] | Western US [Member]  
Principal balance 20,229us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_WesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 27.60%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_WesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
ABS [Member] | Northeastern US [Member]  
Principal balance 18,903us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_NortheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 25.80%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_NortheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
ABS [Member] | Southeastern US [Member]  
Principal balance 16,215us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SoutheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 22.20%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SoutheasternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
ABS [Member] | Midwestern US [Member]  
Principal balance 9,743us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_MidwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 13.30%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_MidwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
ABS [Member] | Southwestern US [Member]  
Principal balance $ 8,094us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SouthwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Percentage of principal balance 11.10%us-gaap_InvestmentOwnedPercentOfNetAssets
/ us-gaap_ConcentrationRiskByTypeAxis
= nct_SouthwesternUSMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember