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Short-Term Debt - Outstanding Balances of Short-Term Debt by Type of Collateral Securing Debt (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2016 USD ($) Contract | Dec. 31, 2015 USD ($) Contract
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  | 15 | 16
Outstanding | [1] | $ 804,175 | $ 1,855,003
Residential loan warehouse |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  | 4 |
Outstanding |  | $ 368,679 |
Limit |  | $ 1,400,000 |
Weighted Average Interest Rate |  | 1.97% |
Weighted Average Days Until Maturity |  | 240 days |
Commercial loan warehouse |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  | 2 | 2
Outstanding |  | $ 0 | $ 73,718
Limit |  | $ 300,000 | $ 300,000
Weighted Average Interest Rate |  |  | 4.13%
Weighted Average Days Until Maturity |  |  | 265 days
Real estate securities repo |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  | 9 | 9
Outstanding |  | $ 435,496 | $ 693,641
Weighted Average Interest Rate |  | 1.77% | 1.47%
Weighted Average Days Until Maturity |  | 29 days | 24 days
Held-for-sale residential loan warehouse |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  |  | 4
Outstanding |  |  | $ 950,022
Limit |  |  | $ 1,400,000
Weighted Average Interest Rate |  |  | 1.90%
Weighted Average Days Until Maturity |  |  | 182 days
FHLBC |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | Contract |  |  | 1
Outstanding |  |  | $ 137,622
Limit |  |  | $ 0
Weighted Average Interest Rate |  |  | 0.21%
Weighted Average Days Until Maturity |  |  | 204 days
[1] | 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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