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Principles of Consolidation - Summary of Redwood's Interest in Third-Party Variable Interest Entity's (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Variable Interest Entity [Line Items] |  |  |
Real estate securities | [1] | $ 293,462 | $ 1,099,874
Variable Interest Entity, Not Primary Beneficiary | Other assets |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | 177,475 | 887,015
Variable Interest Entity, Not Primary Beneficiary | Other assets | Senior |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | 12,580 | 127,094
Variable Interest Entity, Not Primary Beneficiary | Other assets | Mezzanine |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | 25,867 | 508,195
Variable Interest Entity, Not Primary Beneficiary | Other assets | Subordinate |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | 122,689 | 235,510
Variable Interest Entity, Not Primary Beneficiary | Other assets | Total Mortgage-Backed Securities |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | 161,136 | 870,799
Variable Interest Entity, Not Primary Beneficiary | Other assets | Excess MSR |  |  |
Variable Interest Entity [Line Items] |  |  |
Real estate securities |  | $ 16,339 | $ 16,216
[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, 2020 and December 31, 2019, assets of consolidated VIEs totaled $7,470,706 and $11,931,869, respectively. At March 31, 2020 and December 31, 2019, liabilities of consolidated VIEs totaled $6,759,260 and $10,717,072, respectively. See Note 4 for further discussion.

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