Annual report pursuant to Section 13 and 15(d)

DEBT OBLIGATIONS - Debt Obligations (Details)

v2.4.1.9
DEBT OBLIGATIONS - Debt Obligations (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2014
Jun. 30, 2013
Jul. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Debt Face Amount $ 1,318,167us-gaap_DebtInstrumentFaceAmount     $ 1,953,327us-gaap_DebtInstrumentFaceAmount [1] $ 2,786,059us-gaap_DebtInstrumentFaceAmount
Carrying Value 1,315,223us-gaap_DebtInstrumentCarryingAmount [2]     1,941,103us-gaap_DebtInstrumentCarryingAmount [1]  
CDO VI Bonds Payable [Member]          
Month Issued 2005-04 [3]        
Debt Face Amount 92,462us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3]     92,018us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[1],[3]  
Carrying Value 92,462us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3]     92,018us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[1],[3]  
Final Stated Maturity 2040-04 [3]        
Weighted Average Coupon - Rate 0.86%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[4]        
Weighted Average Funding Cost 5.36%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[5]        
Weighted Average Life (Years) 5 years 1 month 6 days [3]        
Face Amount of Floating Rate Debt 88,949nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3]        
Outstanding Face Amount of Collateral 98,920nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[6]        
Amortized Cost Basis of Collateral 36,327nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[6]        
Carrying Value of Collateral 67,809us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[6]        
Weighted Average Maturity (Years) Of Collateral 5 years 1 month 6 days [3]        
Floating Rate Face Amount of Collateral 29,734nct_DebtFloatingRateFaceAmountCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[6]        
Aggregate Notional Amount of Current Hedges 46,528nct_DebtAggregateNotionalAmountCurrentHedges
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIMember 		[3],[7]        
CDO VIII Bonds Payable [Member]          
Month Issued 2006-11        
Debt Face Amount 71,813us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		    264,733us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[1]  
Carrying Value 71,717us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		    264,277us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[1]  
Final Stated Maturity 2052-11        
Weighted Average Coupon - Rate 2.13%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[4]        
Weighted Average Coupon - Basis for Variable Rate   one-month LIBOR      
Weighted Average Coupon - Spread on Basis for Variable Rate   1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		     
Weighted Average Funding Cost 6.55%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[5]        
Weighted Average Life (Years) 2 years        
Face Amount of Floating Rate Debt 64,213nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		       
Outstanding Face Amount of Collateral 210,606nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[6]        
Amortized Cost Basis of Collateral 151,760nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[6]        
Carrying Value of Collateral 162,506us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[6]        
Weighted Average Maturity (Years) Of Collateral 1 year 9 months 18 days        
Floating Rate Face Amount of Collateral 72,252nct_DebtFloatingRateFaceAmountCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[6]        
Aggregate Notional Amount of Current Hedges 58,291nct_DebtAggregateNotionalAmountCurrentHedges
/ us-gaap_DebtInstrumentAxis
= nct_CDOVIIIMember 		[7]        
CDO IX Bonds Payable [Member]          
Month Issued 2007-05        
Debt Face Amount 62,578us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		    186,765us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[1]  
Carrying Value 63,494us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		    188,230us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[1]  
Final Stated Maturity 2052-05        
Weighted Average Coupon - Rate 0.74%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[4]        
Weighted Average Funding Cost 0.16%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[5]        
Weighted Average Life (Years) 1 year 1 month 6 days        
Face Amount of Floating Rate Debt 62,578nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		       
Outstanding Face Amount of Collateral 292,487nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[6]        
Amortized Cost Basis of Collateral 233,420nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[6]        
Carrying Value of Collateral 242,894us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[6]        
Weighted Average Maturity (Years) Of Collateral 2 years 4 months 24 days        
Floating Rate Face Amount of Collateral 57,295nct_DebtFloatingRateFaceAmountCollateral
/ us-gaap_DebtInstrumentAxis
= nct_CDOIXMember 		[6]        
Total CDO Bonds Payable [Member]          
Debt Face Amount 226,853us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		    543,516us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[1]  
Carrying Value 227,673us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		    544,525us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[1]  
Weighted Average Funding Cost 4.28%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[5]        
Weighted Average Life (Years) 3 years        
Face Amount of Floating Rate Debt 215,740nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		       
Outstanding Face Amount of Collateral 602,013nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[6]        
Amortized Cost Basis of Collateral 421,507nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[6]        
Carrying Value of Collateral 473,209us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[6]        
Weighted Average Maturity (Years) Of Collateral 2 years 7 months 6 days        
Floating Rate Face Amount of Collateral 159,281nct_DebtFloatingRateFaceAmountCollateral
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[6]        
Aggregate Notional Amount of Current Hedges 104,819nct_DebtAggregateNotionalAmountCurrentHedges
/ us-gaap_DebtInstrumentAxis
= us-gaap_SecuredDebtMember 		[7]        
NCT 2013-VI IMM-1 [Member]          
Month Issued 2013-11 [8]        
Debt Face Amount 31,060us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[8]     96,129us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[1],[8]  
Carrying Value 27,069us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[8]     86,319us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[1],[8]  
Final Stated Maturity 2040-04 [8]        
Weighted Average Coupon - Basis for Variable Rate LIBOR [4],[8]        
Weighted Average Coupon - Spread on Basis for Variable Rate 0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[4],[8]        
Weighted Average Funding Cost 9.31%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[5],[8]        
Weighted Average Life (Years) 2 years 6 months [8]        
Face Amount of Floating Rate Debt 31,060nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_NCTNotePayableMember 		[8]        
Total Other Bonds And Notes Payable [Member]          
Debt Face Amount 31,060us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		    243,745us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		[1],[7]  
Carrying Value 27,069us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		    230,279us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		[1],[7]  
Weighted Average Funding Cost 9.31%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		[5]        
Weighted Average Life (Years) 2 years 6 months        
Face Amount of Floating Rate Debt 31,060nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_OtherBondsNotesPayableMember 		       
CDO Securities Repurchase Agreements [Member]          
Month Issued 2015-01 [8],[9]        
Debt Face Amount 55,894us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[8],[9]   20,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		15,094us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[1],[8]  
Carrying Value 55,894us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[8],[9]     15,094us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[1],[8]  
Final Stated Maturity 2014-10 [8],[9]        
Weighted Average Coupon - Basis for Variable Rate LIBOR [4],[8],[9]   one month LIBOR    
Weighted Average Coupon - Spread on Basis for Variable Rate 1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[4],[8],[9]   1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		   
Weighted Average Funding Cost 1.82%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[5],[8],[9]        
Weighted Average Life (Years) 1 month 6 days [8],[9]        
Face Amount of Floating Rate Debt 55,894nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_CDODebtSecuritiesMember 		[8],[9]        
FNMA/FHLMC Securities Repurchase Agreements [Member]          
Month Issued 2014-11 [9]        
Debt Face Amount 385,282us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]     516,134us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[1]  
Carrying Value 385,282us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]     516,134us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[1]  
Final Stated Maturity 2015-02 [9]        
Weighted Average Coupon - Rate 0.36%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]        
Weighted Average Funding Cost 0.36%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]        
Weighted Average Life (Years) 1 month 6 days [9]        
Outstanding Face Amount of Collateral 390,771nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]        
Amortized Cost Basis of Collateral 403,216nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]        
Carrying Value of Collateral 407,689us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= nct_USGovernmentAgenciesDebtSecurities1Member 		[9]        
Weighted Average Maturity (Years) Of Collateral 5 years 7 months 6 days [9]        
Total Repurchase Agreements [Member]          
Debt Face Amount 441,176us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]     556,347us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[1]  
Carrying Value 441,176us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]     556,347us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[1]  
Weighted Average Funding Cost 0.55%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[5],[9]        
Weighted Average Life (Years) 1 month 6 days [9]        
Face Amount of Floating Rate Debt 55,894nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]        
Outstanding Face Amount of Collateral 390,771nct_DebtOutstandingFaceCollateral
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]        
Amortized Cost Basis of Collateral 403,216nct_DebtAmortizedCostCollateral
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]        
Carrying Value of Collateral 407,689us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_DebtInstrumentAxis
= nct_DebtRepurchaseAgreementsMember 		[9]        
Weighted Average Maturity (Years) Of Collateral 5 years 7 months 6 days [9]        
Golf First Lien Loan [Member]          
Month Issued 2013-12 [10]        
Debt Face Amount 49,923us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[10]     46,922us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[1]  
Carrying Value 49,923us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[10]     46,922us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[1]  
Final Stated Maturity 2018-12 [10]        
Weighted Average Coupon - Basis for Variable Rate 3 month LIBOR [10],[11],[4]        
Weighted Average Coupon - Spread on Basis for Variable Rate 4.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[10],[11],[4]        
Weighted Average Funding Cost 4.50%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[10],[5]        
Weighted Average Life (Years) 3 years [10]        
Face Amount of Floating Rate Debt 49,923nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_GolfFirstLienLoanAMember 		[10]        
Golf Second Lien Loan [Member]          
Month Issued 2013-12 [10]        
Debt Face Amount 105,575us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[10]     105,576us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[1]  
Carrying Value 105,575us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[10]     105,576us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[1]  
Final Stated Maturity 2018-12 [10]        
Weighted Average Coupon - Rate 5.50%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[10],[4]        
Weighted Average Funding Cost 5.50%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_GolfSecondLienLoanMember 		[10],[5]        
Weighted Average Life (Years) 3 years [10]        
Golf Vineyard II [Member]          
Month Issued 1993-12 [10]        
Debt Face Amount 200us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfVineyardIIMember 		[10]        
Carrying Value 200us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfVineyardIIMember 		[10]        
Final Stated Maturity 2043-12 [10]        
Weighted Average Coupon - Rate 2.13%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= nct_GolfVineyardIIMember 		[10],[4]        
Weighted Average Funding Cost 2.13%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_GolfVineyardIIMember 		[10],[5]        
Weighted Average Life (Years) 29 years [10]        
Face Amount of Floating Rate Debt 200nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_GolfVineyardIIMember 		[10]        
Capital Lease Equipment [Member]          
Debt Face Amount 6,159us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_CapitalLeaseObligationsMember 		[10]        
Carrying Value 6,159us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_CapitalLeaseObligationsMember 		[10]        
Final Stated Maturity 2020-07 [10]        
Weighted Average Funding Cost 6.91%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= us-gaap_CapitalLeaseObligationsMember 		[10],[5]        
Weighted Average Life (Years) 5 years 6 months [10]        
Capital Lease Equipment [Member] | Lower Range          
Month Issued 2014-05 [10]        
Weighted Average Coupon - Rate 5.25%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= us-gaap_CapitalLeaseObligationsMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		[10],[4]        
Capital Lease Equipment [Member] | Upper Range          
Month Issued 2014-12 [10]        
Weighted Average Coupon - Rate 7.15%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= us-gaap_CapitalLeaseObligationsMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		[10],[4]        
Total Golf Credit Facilities [Member]          
Debt Face Amount 161,857us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[10]     152,498us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[1]  
Carrying Value 161,857us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[10]     152,498us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[1]  
Weighted Average Funding Cost 5.24%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[10],[5]        
Weighted Average Life (Years) 3 years 1 month 6 days [10]        
Face Amount of Floating Rate Debt 50,123nct_DebtFloatingRateFace
/ us-gaap_DebtInstrumentAxis
= nct_GolfCreditFacilitiesMember 		[10]        
Junior Subordinated Notes Payable [Member]          
Month Issued 2006-03        
Debt Face Amount 51,004us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		    51,004us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		[1]  
Carrying Value 51,213us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		    51,237us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		[1]  
Final Stated Maturity 2035-04        
Weighted Average Coupon - Rate 7.57%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		[12],[4]        
Weighted Average Funding Cost 7.36%nct_DebtWeightedAverageFundingCost
/ us-gaap_DebtInstrumentAxis
= us-gaap_JuniorSubordinatedDebtMember 		[5]        
Weighted Average Life (Years) 20 years 3 months 19 days        
Total Corporate [Member]          
Debt Face Amount 51,004us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_CorporateDebtSecuritiesMember 		    51,004us-gaap_DebtInstrumentFaceAmount
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= us-gaap_CorporateDebtSecuritiesMember 		[1]  
Carrying Value 51,237us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_CorporateDebtSecuritiesMember 		    51,237us-gaap_DebtInstrumentCarryingAmount
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= us-gaap_CorporateDebtSecuritiesMember 		[1]  
Weighted Average Funding Cost 7.36%nct_DebtWeightedAverageFundingCost
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= us-gaap_CorporateDebtSecuritiesMember 		[5]        
Weighted Average Life (Years) 20 years 3 months 19 days        
Subtotal Debt Obligations [Member]          
Debt Face Amount 911,950us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_DebtSecuritiesPayableMember 		    1,547,110us-gaap_DebtInstrumentFaceAmount
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= us-gaap_DebtSecuritiesPayableMember 		[1]  
Carrying Value 909,006us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_DebtSecuritiesPayableMember 		    1,534,886us-gaap_DebtInstrumentCarryingAmount
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= us-gaap_DebtSecuritiesPayableMember 		[1]  
Weighted Average Funding Cost 2.96%nct_DebtWeightedAverageFundingCost
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= us-gaap_DebtSecuritiesPayableMember 		[5]        
Weighted Average Life (Years) 2 years 7 months 6 days        
Face Amount of Floating Rate Debt 352,817nct_DebtFloatingRateFace
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= us-gaap_DebtSecuritiesPayableMember 		       
Outstanding Face Amount of Collateral 992,784nct_DebtOutstandingFaceCollateral
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= us-gaap_DebtSecuritiesPayableMember 		[6]        
Amortized Cost Basis of Collateral 824,723nct_DebtAmortizedCostCollateral
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= us-gaap_DebtSecuritiesPayableMember 		[6]        
Carrying Value of Collateral 880,898us-gaap_DebtInstrumentCollateralAmount
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= us-gaap_DebtSecuritiesPayableMember 		[6]        
Weighted Average Maturity (Years) Of Collateral 3 years 9 months 18 days        
Floating Rate Face Amount of Collateral 159,281nct_DebtFloatingRateFaceAmountCollateral
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= us-gaap_DebtSecuritiesPayableMember 		[6]        
Aggregate Notional Amount of Current Hedges 104,819nct_DebtAggregateNotionalAmountCurrentHedges
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= us-gaap_DebtSecuritiesPayableMember 		[7]        
Financing on subprime mortgage loans subject to call option [Member]          
Debt Face Amount 406,217us-gaap_DebtInstrumentFaceAmount
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= us-gaap_ResidentialSubprimeFinancingReceivableMember 		[1],[13]  
Carrying Value 406,217us-gaap_DebtInstrumentCarryingAmount
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= us-gaap_ResidentialSubprimeFinancingReceivableMember 		[1],[13]  
MH Loans Portfolio I Bonds and Notes Payable [Member]          
Month Issued       2010-04  
Debt Face Amount       53,753us-gaap_DebtInstrumentFaceAmount
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Carrying Value       50,424us-gaap_DebtInstrumentCarryingAmount
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= nct_MHLoansPortfolioIMember 		 
MH Loans Portfolio II Bonds and Notes Payable [Member]          
Month Issued       2011-05  
Debt Face Amount       93,863us-gaap_DebtInstrumentFaceAmount
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= nct_MHLoansPortfolioIIMember 		 
Carrying Value       93,536us-gaap_DebtInstrumentCarryingAmount
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= nct_MHLoansPortfolioIIMember 		 
Residential Mortgage Loans Repurchase Agreements [Member]          
Month Issued       2013-11  
Debt Face Amount       25,119us-gaap_DebtInstrumentFaceAmount
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= nct_NCTRepoMember 		 
Carrying Value       $ 25,119us-gaap_DebtInstrumentCarryingAmount
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= nct_NCTRepoMember 		 
[1] This CDO was not in compliance with its applicable over collateralization tests as of December 31, 2014. Newcastle is not receiving cash flows from this CDO (other than senior management fees and cash flows on senior classes of bonds that were repurchased), since net interest is being used to repay debt, and expects this CDO to remain out of compliance for the forseeable future.
[2] Net of $35.1 million and $87.7 million of inter-segment eliminations as of December 31, 2014 and 2013, respectively.
[3] This CDO was not in compliance with its applicable over collateralization tests as of December 31, 2014. Newcastle is not receiving cash flows from this CDO (other than senior management fees and cash flows on senior classes of bonds that were repurchased), since net interest is being used to repay debt, and expects this CDO to remain out of compliance for the foreseeable future.
[4] Weighted average, including floating and fixed rate classes.
[5] Including the effect of applicable hedges and deferred financing cost.
[6] Excluding restricted cash held in CDOs to be used for principal and interest payments of CDO debt.
[7] Including the $46.5 million portion of the notional amount of interest rate swap in CDO VI, which acted as an economic hedge that was not designated as a hedge for accounting purposes.
[8] Represents financings of previously repurchased Newcastle CDO bonds for which the collateral is eliminated in consolidation.
[9] These repurchase agreements had less than $0.1 million accrued interest payable at December 31, 2014. $436.0 million face amount of these repurchase agreements were renewed subsequent to December 31, 2014. The counterparties on these repurchase agreements are Bank of America ($55.9 million) and Nomura ($385.3 million). Newcastle has margin exposure on $441.2 million of repurchase agreements related to the financing of certain Newcastle CDO VIII, CDO IX notes and FNMA/FHLMC securities. To the extent that the value of the collateral underlying these repurchase agreements declines, Newcastle may be required to post margin, which could significantly impact its liquidity.
[10] The golf credit facilities are collateralized by all of the assets of the Golf business.
[11] Interest rate on this is based on 3 month LIBOR with a LIBOR floor of 0.5%.
[12] LIBOR +2.25% after April 2016.
[13] Issued in April 2006 and July 2007 and secured by the general credit of Newcastle. See Note 6 regarding the securitizations of Subprime Portfolio I and II.