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Short-Term Debt - Remaining Maturities of Short Term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Short-term Debt [Line Items] |  |  |
Short-term debt | [1],[2] | $ 1,938,682 | $ 791,539
Within 30 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 667,942 |
31 to 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 450,923 |
Over 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 819,817 |
Line of Credit |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 1,688,412 |
Line of Credit | Held-for sale residential loans |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 1,039,666 | 485,544
Line of Credit | Real estate securities |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 648,746 | $ 305,995
Line of Credit | Within 30 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 667,942 |
Line of Credit | Within 30 days | Held-for sale residential loans |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 150,095 |
Line of Credit | Within 30 days | Real estate securities |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 517,847 |
Line of Credit | 31 to 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 450,923 |
Line of Credit | 31 to 90 days | Held-for sale residential loans |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 320,024 |
Line of Credit | 31 to 90 days | Real estate securities |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 130,899 |
Line of Credit | Over 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 569,547 |
Line of Credit | Over 90 days | Held-for sale residential loans |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 569,547 |
Line of Credit | Over 90 days | Real estate securities |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 0 |
Convertible notes, net |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 250,270 |
Convertible notes, net | Within 30 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 0 |
Convertible notes, net | 31 to 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | 0 |
Convertible notes, net | Over 90 days |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  | $ 250,270 |
[1] | Includes $250 million of convertible notes, which were reclassified from Long-term debt, net to Short-term debt as the maturity of the notes was less than one year as of December 31, 2017. See Note 11 for further discussion.
[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 December 31, 2017 and December 31, 2016, assets of consolidated VIEs totaled $1,259,774 and $798,317, respectively. At December 31, 2017 and December 31, 2016, liabilities of consolidated VIEs totaled $1,167,157 and $773,980, respectively. See Note 4 for further discussion.

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