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Residential Loans - Summary of Classifications and Carrying Value of Residential Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Residential Loans Held For Sale |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans | [1] | $ 1,104,660 | $ 1,427,945
Residential Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,100,000 | 1,430,000
Residential loans, at lower of cost or fair value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 100 | 1,000
Legacy Sequoia | Residential Loans Held For Investment at Fair Value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 592,000 | 633,000
Sequoia Choice | Residential Loans Held For Investment at Fair Value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,480,000 | 620,000
Redwood | Residential Loans Held For Investment at Fair Value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  |  | 2,430,000
Residential loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 5,491,170 | 5,115,210
Residential loans | Residential Loans Held For Sale |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,104,660 | 1,427,945
Residential loans | Residential Loans | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,104,545 | 1,427,052
Residential loans | Residential loans, at lower of cost or fair value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 115 | 893
Residential loans | Residential Loans Held For Investment at Fair Value | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 4,386,510 | 3,687,265
Residential loans | Legacy Sequoia |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 592,029 | 632,817
Residential loans | Legacy Sequoia | Residential Loans Held For Sale |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Legacy Sequoia | Residential Loans | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Legacy Sequoia | Residential loans, at lower of cost or fair value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Legacy Sequoia | Residential Loans Held For Investment at Fair Value | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 592,029 | 632,817
Residential loans | Sequoia Choice |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,481,145 | 620,062
Residential loans | Sequoia Choice | Residential Loans Held For Sale |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Sequoia Choice | Residential Loans | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Sequoia Choice | Residential loans, at lower of cost or fair value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 0 | 0
Residential loans | Sequoia Choice | Residential Loans Held For Investment at Fair Value | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,481,145 | 620,062
Residential loans | Redwood |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 3,417,996 | 3,862,331
Residential loans | Redwood | Residential Loans Held For Sale |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,104,660 | 1,427,945
Residential loans | Redwood | Residential Loans | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 1,104,545 | 1,427,052
Residential loans | Redwood | Residential loans, at lower of cost or fair value |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | 115 | 893
Residential loans | Redwood | Residential Loans Held For Investment at Fair Value | Jumbo Loans |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |
Residential loans |  | $ 2,313,336 | $ 2,434,386
[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 June 30, 2018 and December 31, 2017, assets of consolidated VIEs totaled $2,082,771 and $1,259,774, respectively. At June 30, 2018 and December 31, 2017, liabilities of consolidated VIEs totaled $1,935,299 and $1,167,157, respectively. See Note 4 for further discussion.

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