Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Gain (Loss) on Settlement of Investments (Details 1)

v2.4.1.9
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Gain (Loss) on Settlement of Investments (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Gain (loss) on settlement of investments, net      
Gain on termination of derivative   $ 813nct_DerivativeGainLossOnDerivativeTerminationNet  
Gain (loss) on disposal of long-lived assets (1,294)us-gaap_GainLossOnDispositionOfAssets (67)us-gaap_GainLossOnDispositionOfAssets (2)us-gaap_GainLossOnDispositionOfAssets
[GainLossOnInvestments] 50,734us-gaap_GainLossOnInvestments 17,369us-gaap_GainLossOnInvestments 232,897us-gaap_GainLossOnInvestments
Other income (loss), net      
Gain on non-hedge derivative instruments 17,599nct_GainLossNonHedgeDerivatives 10,525nct_GainLossNonHedgeDerivatives 9,180nct_GainLossNonHedgeDerivatives
Gain on lease modifications and terminations 7,219nct_GainOnLeaseModificationsAndTerminations    
Unrealized loss recognized at de-designation of hedges (34)nct_GainLossDedesignationHedges (110)nct_GainLossDedesignationHedges (7,036)nct_GainLossDedesignationHedges
Hedge ineffectiveness     483us-gaap_GainLossOnCashFlowHedgeIneffectivenessNet
Equity in earnings of equity method investees 954nct_IncomeLossFromEquityMethodInvestments2 (97)nct_IncomeLossFromEquityMethodInvestments2  
Collateral management fee income, net 963us-gaap_ManagementFeesRevenue 1,279us-gaap_ManagementFeesRevenue 1,786us-gaap_ManagementFeesRevenue
Other income (loss) 437us-gaap_OtherNonoperatingIncome 1,759us-gaap_OtherNonoperatingIncome 981us-gaap_OtherNonoperatingIncome
Total Other income (loss), net 27,138us-gaap_OtherNonoperatingGainsLosses 13,356us-gaap_OtherNonoperatingGainsLosses 5,394us-gaap_OtherNonoperatingGainsLosses
Total Real Estate Related and Other Loans Held-for-Sale, Net [Member]      
Gain (loss) on settlement of investments, net      
Gain on settlement of investments 32,500nct_GainOnInvestments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_RealEstateRelatedAndOtherLoansHeldForSaleMember
10,716nct_GainOnInvestments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_RealEstateRelatedAndOtherLoansHeldForSaleMember
 
Loss on settlement of investments   (354)nct_LossesOnInvestments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_RealEstateRelatedAndOtherLoansHeldForSaleMember
(1,614)nct_LossesOnInvestments
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_RealEstateRelatedAndOtherLoansHeldForSaleMember
Real Estate Securities [Member]      
Gain (loss) on settlement of investments, net      
Gain on settlement of investments 23,679nct_GainOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
9,853nct_GainOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
14,629nct_GainOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
Loss on settlement of investments   (3,592)nct_LossesOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
(4,433)nct_LossesOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
CDO X [Member]      
Gain (loss) on settlement of investments, net      
Gain on settlement of investments     $ 224,317nct_GainOnInvestments
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= nct_CDOXDivestitureMember