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Asset-Backed Securities Issued - Components of Asset-Backed Securities Issued by Consolidated Securitization Entities Sponsored, Along With Other Selected Information (Detail) $ in Thousands | Mar. 31, 2016 USD ($) series | Dec. 31, 2015 USD ($) series
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Secured Debt, Net Of Debt Issuance Costs | [1],[2] | $ 2,683,432 | $ 2,027,737
Asset-backed Securities |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 958,703 | 1,049,957
Market valuation adjustments |  | (141,939) | (116,637)
Deferred debt issuance costs |  | (339) | (542)
Secured Debt, Net Of Debt Issuance Costs |  | 958,364 | 1,049,415
Asset-backed Securities | Certificates With Principal Value |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 1,096,044 | 1,161,922
Asset-backed Securities | Interest Only Certificates |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 4,598 | 4,672
Asset-backed Securities | Sequoia |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 907,023 | 996,820
Market valuation adjustments |  | (141,939) | (116,637)
Deferred debt issuance costs |  | 0 | 0
Secured Debt, Net Of Debt Issuance Costs |  | $ 907,023 | $ 996,820
Number of series | series |  | 20 | 21
Asset-backed Securities | Sequoia | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Weighted average interest rates, by series |  | 0.64% | 0.41%
Asset-backed Securities | Sequoia | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Weighted average interest rates, by series |  | 1.87% | 2.21%
Asset-backed Securities | Sequoia | Certificates With Principal Value |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | $ 1,044,364 | $ 1,108,785
Asset-backed Securities | Sequoia | Interest Only Certificates |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 4,598 | 4,672
Asset-backed Securities | Commercial Securitization |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | 51,680 | 53,137
Deferred debt issuance costs |  | (339) | (542)
Secured Debt, Net Of Debt Issuance Costs |  | $ 51,341 | $ 52,595
Weighted average interest rates, by series |  | 5.62% | 5.62%
Number of series | series |  | 1 | 1
Asset-backed Securities | Commercial Securitization | Certificates With Principal Value |  |  |
Debt Instrument [Line Items] |  |  |
Principal value |  | $ 51,680 | $ 53,137
[1] | At March 31, 2016 and December 31, 2015, Asset-backed securities issued, net included $339 and $542, respectively, of deferred debt issuance costs, and long-term debt, net included $9,513 and $10,438, respectively, of deferred debt issuance costs.
[2] | Our consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations of these VIEs and liabilities of consolidated VIEs for which creditors do not have recourse to Redwood Trust, Inc. or its affiliates. At March 31, 2016 and December 31, 2015, assets of consolidated VIEs totaled $1,102,195 and $1,195,574, respectively. At March 31, 2016 and December 31, 2015, liabilities of consolidated VIEs totaled $959,464 and $1,050,861, respectively. See Note 4 for further discussion.

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