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Residential Loans at Amortized Cost, Net - Recorded Investment in Residential Loans Accounted for Amortized Cost by Credit Quality Indicator (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]      
Recorded investment in residential loans accounted at amortized cost $ 1,373,083us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome $ 1,409,191us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome $ 1,510,756us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Recorded investment in residential loans accounted at amortized cost   1,328,371us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PerformingFinancingReceivableMember		 1,407,375us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PerformingFinancingReceivableMember
Non-performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Recorded investment in residential loans accounted at amortized cost   $ 80,820us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_NonperformingFinancingReceivableMember		 $ 103,381us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_NonperformingFinancingReceivableMember