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Element rwt_FairValueOptionAssetsAggregateCarryingAmountDuringPeriod had a mix of decimals attribute values: -7 -6. Element rwt_LoansUnderlying had a mix of decimals attribute values: -9 -6. Element rwt_PrincipalAmountOfLoansSecuritizedDuringPeriod had a mix of decimals attribute values: -7 -6. Element us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs had a mix of decimals attribute values: -6 -3. Element us-gaap_DebtInstrumentFaceAmount had a mix of decimals attribute values: -6 -3. Element us-gaap_DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion had a mix of decimals attribute values: -6 -3. Element us-gaap_ExtinguishmentOfDebtAmount had a mix of decimals attribute values: -6 -3. Element us-gaap_IncomeTaxExpenseBenefit had a mix of decimals attribute values: -6 -3. Element us-gaap_LoansPledgedAsCollateral had a mix of decimals attribute values: -7 -6. 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