Annual report pursuant to Section 13 and 15(d)

DERIVATIVES - Schedule of gross and net information about linked transactions (Details 3)

v2.4.1.9
DERIVATIVES - Schedule of gross and net information about linked transactions (Details 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Real estate securities, available-for-sale $ 231,754us-gaap_AvailableForSaleSecuritiesDebtSecurities $ 432,993us-gaap_AvailableForSaleSecuritiesDebtSecurities  
Repurchase agreements (441,176)us-gaap_SecuritiesSoldUnderAgreementsToRepurchase (556,347)us-gaap_SecuritiesSoldUnderAgreementsToRepurchase (929,435)us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
Linked Transactions [Member]      
Real estate securities, available-for-sale   104,308us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_DerivativeByNatureAxis
= nct_LinkedTransactionDerivativeAssetMember 		[1]  
Repurchase agreements   (60,646)us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
/ us-gaap_DerivativeByNatureAxis
= nct_LinkedTransactionDerivativeAssetMember 		[2]  
Net Assets recognized as linked transactions   $ 43,662nct_NetAssetsRecognizedAsLinkedTransactions
/ us-gaap_DerivativeByNatureAxis
= nct_LinkedTransactionDerivativeAssetMember 		 
[1] Represents the fair value of the securities accounted for as part of linked transactions.
[2] Represents the carrying value, which approximates fair value, of the repurchase agreements accounted for as part of linked transactions.